[USN-8202-2] jq vulnerabilities
[USN-8214-1] NLTK vulnerability
[USN-8190-2] Rack::Session vulnerability
[USN-8136-2] Dovecot regression
[USN-8185-2] Linux kernel (Low Latency NVIDIA) vulnerabilities
[USN-8198-2] Tornado vulnerabilities
[USN-8217-1] follow-redirects vulnerabilities
[USN-8219-1] UltraJSON vulnerabilities
[USN-8202-2] jq vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8202-2
April 28, 2026
jq vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
Summary:
Several security issues were fixed in jq.
Software Description:
Details:
USN-8202-1 fixed vulnerabilities in jq. This update provides the
corresponding update to Ubuntu 26.04 LTS.
Original advisory details:
It was discovered that jq did not correctly handle certain string
concatenations. An attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. (CVE-2026-32316)
It was discovered that jq did not correctly handle recursion in certain
circumstances. An attacker could possibly use this issue to cause a denial
of service. (CVE-2026-33947)
It was discovered that jq did not correctly handle improperly terminated
strings. An attacker could possibly use this issue to cause a denial of
service or execute arbitrary code. (CVE-2026-33948)
It was discovered that jq did not correctly handle checking certain
variable types. An attacker could possibly use this issue to cause a
denial of service or leak sensitive information. (CVE-2026-39956)
It was discovered that jq did not correctly handle certain string
formatting. An attacker could possibly use this issue to leak sensitive
information or cause a denial of service. (CVE-2026-39979)
It was discovered that jq used a fixed seed for hash table operations. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2026-40164)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8202-2
https://ubuntu.com/security/notices/USN-8202-1
CVE-2026-32316, CVE-2026-33947, CVE-2026-33948, CVE-2026-39956,
CVE-2026-39979, CVE-2026-40164
[USN-8214-1] NLTK vulnerability
==========================================================================
Ubuntu Security Notice USN-8214-1
April 28, 2026
nltk vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
NLTK could be made to crash or run programs as your login if it opened a
specially crafted zip file.
Software Description:
- nltk: Natural Language Toolkit
Details:
It was discovered that NLTK incorrectly handled file extraction when
opening a maliciously crafted zip file. An attacker could possibly use this
issue to create or overwrite files on the system and execute arbitrary
code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
python3-nltk 3.8.1-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 22.04 LTS
python3-nltk 3.7-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 20.04 LTS
python3-nltk 3.4.5-2ubuntu0.1~esm3
Available with Ubuntu Pro
Ubuntu 18.04 LTS
python-nltk 3.2.5-1ubuntu0.1+esm3
Available with Ubuntu Pro
python3-nltk 3.2.5-1ubuntu0.1+esm3
Available with Ubuntu Pro
Ubuntu 16.04 LTS
python-nltk 3.1-1ubuntu0.1+esm3
Available with Ubuntu Pro
python3-nltk 3.1-1ubuntu0.1+esm3
Available with Ubuntu Pro
Ubuntu 14.04 LTS
python-nltk 2.0~b9-0ubuntu4.1~esm5
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8214-1
CVE-2025-14009
[USN-8190-2] Rack::Session vulnerability
==========================================================================
Ubuntu Security Notice USN-8190-2
April 28, 2026
ruby-rack-session vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 26.04 LTS
Summary:
Rack::Session could allow unintended access to network services.
Software Description:
- ruby-rack-session: Session management implementation for Rack
Details:
USN-8190-1 fixed a vulnerability in Rack::Session. This update provides the
corresponding update for Ubuntu 26.04 LTS.
Original advisory details:
SeungMyung Lee discovered that Rack::Session did not properly reject
cookies upon decryption failure. A remote attacker could use this issue to
manipulate session contents and possibly gain unauthorized access.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 26.04 LTS
ruby-rack-session 2.1.1-0.1ubuntu0.26.04.1
After a standard system update you need to restart ruby-rack-session to
make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8190-2
https://ubuntu.com/security/notices/USN-8190-1
CVE-2026-39324
Package Information:
https://launchpad.net/ubuntu/+source/ruby-rack-session/2.1.1-0.1ubuntu0.26.04.1
[USN-8136-2] Dovecot regression
==========================================================================
Ubuntu Security Notice USN-8136-2
April 28, 2026
dovecot regression
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
Summary:
USN-8136-1 introduced a regression in Dovecot
Software Description:
- dovecot: IMAP and POP3 email server
Details:
USN-8136-1 fixed vulnerabilities in Dovecot. The update caused a regression
on Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that Dovecot incorrectly handled invalid base64 SASL data.
An attacker could possibly use this issue to cause a denial of service. This
issue only affected Ubuntu 25.10. (CVE-2025-59028)
It was discovered that Dovecot script decode2text.sh incorrectly handled zip
files. An attacker could possibly use this issue to obtain sensitive
information. (CVE-2025-59031)
It was discovered that Dovecot incorrectly handled certain AUTHENTICATE
requests. An attacker could possibly use this issue to cause a denial of
service. (CVE-2025-59032)
It was discovered that Dovecot incorrectly handled certain SQL based
authentication. An attacker could possibly use this issue to bypass
authentication. This issue only affected Ubuntu 25.10. (CVE-2026-24031)
It was discovered that Dovecot incorrectly handled certain LDAP based
authentication. An attacker could possibly use this issue to bypass
restrictions and allow probing of LDAP structure. This issue only affected
Ubuntu 25.10. (CVE-2026-27860)
It was discovered that Dovecot is vulnerable to replay attack under
certain conditions. An attacker could possibly use this issue to bypass
authentication. (CVE-2026-27855)
It was discovered that Dovecot is vulnerable to a timing attack under
certain conditions. An attacker could possibly use this issue to bypass
authentication. (CVE-2026-27856)
It was discovered that Dovecot incorrectly handled certain IMAP login
requests. An attacker could possibly use this issue to cause a denial of
service. (CVE-2026-27857)
It was discovered that Dovecot incorrectly handled certain specially
crafted messages. An attacker could possibly use this issue to cause a
denial of service. (CVE-2026-27858)
It was discovered that Dovecot incorrectly handled certain specially
crafted mail messages. An attacker could possibly use this issue to
cause a denial of service. (CVE-2026-27859)
It was discovered that Dovecot incorrectly handles file paths. A attacker
could possibly use this issue to perform a path traversal and obtain or
modify arbitrary files. This issue only affected Ubuntu 22.04 LTS and
Ubuntu 24.04 LTS. (CVE-2026-0394)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
dovecot-core 1:2.3.21+dfsg1-2ubuntu6.4
Ubuntu 22.04 LTS
dovecot-core 1:2.3.16+dfsg1-3ubuntu2.8
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8136-2
https://ubuntu.com/security/notices/USN-8136-1
CVE-2026-0394, https://launchpad.net/bugs/2150116
Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.21+dfsg1-2ubuntu6.4
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.16+dfsg1-3ubuntu2.8
[USN-8185-2] Linux kernel (Low Latency NVIDIA) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8185-2
April 28, 2026
linux-nvidia-lowlatency vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-nvidia-lowlatency: Linux low latency kernel for NVIDIA systems
Details:
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality.
(CVE-2024-36347)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- Hardware crypto device drivers;
- GPU drivers;
- Hardware monitoring drivers;
- InfiniBand drivers;
- Input Device core drivers;
- IOMMU subsystem;
- IRQ chip drivers;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- MediaTek network drivers;
- NVME drivers;
- PA-RISC drivers;
- Chrome hardware platform drivers;
- x86 platform drivers;
- Voltage and Current Regulator drivers;
- SCSI subsystem;
- SPI subsystem;
- Media Oriented Systems Transport (MOST) driver;
- Realtek RTL8723BS SDIO drivers;
- TCM subsystem;
- USB Host Controller drivers;
- USB Type-C Connector System Software Interface driver;
- Backlight driver;
- Watchdog drivers;
- BFS file system;
- BTRFS file system;
- Ext4 file system;
- F2FS file system;
- FUSE (File system in Userspace);
- HFS+ file system;
- File systems infrastructure;
- Journaling layer for block devices (JBD2);
- Network file system (NFS) client;
- File system notification infrastructure;
- NTFS3 file system;
- OCFS2 file system;
- SMB network file system;
- BPF subsystem;
- Ethernet bridge;
- io_uring subsystem;
- Locking primitives;
- Scheduler infrastructure;
- Shadow Call Stack mechanism;
- Tracing infrastructure;
- Memory management;
- CAIF protocol;
- Ceph Core library;
- Networking core;
- Ethtool driver;
- Handshake API;
- HSR network protocol;
- IPv4 networking;
- IPv6 networking;
- MAC80211 subsystem;
- Multipath TCP;
- Netfilter;
- NET/ROM layer;
- NFC subsystem;
- Open vSwitch;
- Rose network layer;
- Network traffic control;
- Network sockets;
- Sun RPC protocol;
- Integrity Measurement Architecture(IMA) framework;
- Key management;
- Simplified Mandatory Access Control Kernel framework;
- FireWire sound drivers;
- HD-audio driver;
- Turtle Beach Wavefront ALSA driver;
- STMicroelectronics SoC drivers;
- USB sound devices;
- KVM subsystem;
(CVE-2024-57795, CVE-2025-22022, CVE-2025-22111, CVE-2025-38022,
CVE-2025-38234, CVE-2025-40164, CVE-2025-40325, CVE-2025-68206,
CVE-2025-68254, CVE-2025-68255, CVE-2025-68256, CVE-2025-68257,
CVE-2025-68258, CVE-2025-68259, CVE-2025-68261, CVE-2025-68263,
CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68291,
CVE-2025-68325, CVE-2025-68332, CVE-2025-68335, CVE-2025-68336,
CVE-2025-68337, CVE-2025-68344, CVE-2025-68345, CVE-2025-68346,
CVE-2025-68347, CVE-2025-68349, CVE-2025-68354, CVE-2025-68362,
CVE-2025-68363, CVE-2025-68364, CVE-2025-68366, CVE-2025-68367,
CVE-2025-68369, CVE-2025-68371, CVE-2025-68372, CVE-2025-68374,
CVE-2025-68378, CVE-2025-68379, CVE-2025-68380, CVE-2025-68724,
CVE-2025-68727, CVE-2025-68728, CVE-2025-68732, CVE-2025-68733,
CVE-2025-68740, CVE-2025-68741, CVE-2025-68742, CVE-2025-68744,
CVE-2025-68753, CVE-2025-68755, CVE-2025-68756, CVE-2025-68757,
CVE-2025-68758, CVE-2025-68759, CVE-2025-68763, CVE-2025-68764,
CVE-2025-68765, CVE-2025-68766, CVE-2025-68767, CVE-2025-68769,
CVE-2025-68770, CVE-2025-68771, CVE-2025-68772, CVE-2025-68773,
CVE-2025-68774, CVE-2025-68775, CVE-2025-68776, CVE-2025-68777,
CVE-2025-68778, CVE-2025-68780, CVE-2025-68782, CVE-2025-68783,
CVE-2025-68785, CVE-2025-68786, CVE-2025-68787, CVE-2025-68788,
CVE-2025-68794, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797,
CVE-2025-68798, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801,
CVE-2025-68804, CVE-2025-68806, CVE-2025-68808, CVE-2025-68809,
CVE-2025-68810, CVE-2025-68811, CVE-2025-68813, CVE-2025-68814,
CVE-2025-68815, CVE-2025-68816, CVE-2025-68817, CVE-2025-68818,
CVE-2025-68819, CVE-2025-68820, CVE-2025-68821, CVE-2025-71064,
CVE-2025-71065, CVE-2025-71066, CVE-2025-71067, CVE-2025-71068,
CVE-2025-71069, CVE-2025-71071, CVE-2025-71072, CVE-2025-71075,
CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71081,
CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085,
CVE-2025-71086, CVE-2025-71087, CVE-2025-71088, CVE-2025-71089,
CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71095,
CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71101,
CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71107,
CVE-2025-71108, CVE-2025-71109, CVE-2025-71111, CVE-2025-71112,
CVE-2025-71113, CVE-2025-71114, CVE-2025-71116, CVE-2025-71118,
CVE-2025-71119, CVE-2025-71120, CVE-2025-71121, CVE-2025-71122,
CVE-2025-71123, CVE-2025-71125, CVE-2025-71126, CVE-2025-71127,
CVE-2025-71130, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133,
CVE-2025-71135, CVE-2025-71136, CVE-2025-71137, CVE-2025-71138,
CVE-2025-71140, CVE-2025-71141, CVE-2025-71143, CVE-2025-71144,
CVE-2025-71147, CVE-2025-71148, CVE-2025-71149, CVE-2025-71150,
CVE-2025-71151, CVE-2025-71153, CVE-2025-71154, CVE-2026-23209)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
linux-image-6.8.0-1051-nvidia-lowlatency 6.8.0-1051.54.1
linux-image-6.8.0-1051-nvidia-lowlatency-64k 6.8.0-1051.54.1
linux-image-nvidia-lowlatency 6.8.0-1051.54.1
linux-image-nvidia-lowlatency-6.8 6.8.0-1051.54.1
linux-image-nvidia-lowlatency-64k 6.8.0-1051.54.1
linux-image-nvidia-lowlatency-64k-6.8 6.8.0-1051.54.1
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8185-2
https://ubuntu.com/security/notices/USN-8185-1
CVE-2024-36347, CVE-2024-57795, CVE-2025-22022, CVE-2025-22111,
CVE-2025-38022, CVE-2025-38234, CVE-2025-40164, CVE-2025-40325,
CVE-2025-68206, CVE-2025-68254, CVE-2025-68255, CVE-2025-68256,
CVE-2025-68257, CVE-2025-68258, CVE-2025-68259, CVE-2025-68261,
CVE-2025-68263, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266,
CVE-2025-68291, CVE-2025-68325, CVE-2025-68332, CVE-2025-68335,
CVE-2025-68336, CVE-2025-68337, CVE-2025-68344, CVE-2025-68345,
CVE-2025-68346, CVE-2025-68347, CVE-2025-68349, CVE-2025-68354,
CVE-2025-68362, CVE-2025-68363, CVE-2025-68364, CVE-2025-68366,
CVE-2025-68367, CVE-2025-68369, CVE-2025-68371, CVE-2025-68372,
CVE-2025-68374, CVE-2025-68378, CVE-2025-68379, CVE-2025-68380,
CVE-2025-68724, CVE-2025-68727, CVE-2025-68728, CVE-2025-68732,
CVE-2025-68733, CVE-2025-68740, CVE-2025-68741, CVE-2025-68742,
CVE-2025-68744, CVE-2025-68753, CVE-2025-68755, CVE-2025-68756,
CVE-2025-68757, CVE-2025-68758, CVE-2025-68759, CVE-2025-68763,
CVE-2025-68764, CVE-2025-68765, CVE-2025-68766, CVE-2025-68767,
CVE-2025-68769, CVE-2025-68770, CVE-2025-68771, CVE-2025-68772,
CVE-2025-68773, CVE-2025-68774, CVE-2025-68775, CVE-2025-68776,
CVE-2025-68777, CVE-2025-68778, CVE-2025-68780, CVE-2025-68782,
CVE-2025-68783, CVE-2025-68785, CVE-2025-68786, CVE-2025-68787,
CVE-2025-68788, CVE-2025-68794, CVE-2025-68795, CVE-2025-68796,
CVE-2025-68797, CVE-2025-68798, CVE-2025-68799, CVE-2025-68800,
CVE-2025-68801, CVE-2025-68804, CVE-2025-68806, CVE-2025-68808,
CVE-2025-68809, CVE-2025-68810, CVE-2025-68811, CVE-2025-68813,
CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68817,
CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-68821,
CVE-2025-71064, CVE-2025-71065, CVE-2025-71066, CVE-2025-71067,
CVE-2025-71068, CVE-2025-71069, CVE-2025-71071, CVE-2025-71072,
CVE-2025-71075, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079,
CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084,
CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71088,
CVE-2025-71089, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094,
CVE-2025-71095, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098,
CVE-2025-71101, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105,
CVE-2025-71107, CVE-2025-71108, CVE-2025-71109, CVE-2025-71111,
CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71116,
CVE-2025-71118, CVE-2025-71119, CVE-2025-71120, CVE-2025-71121,
CVE-2025-71122, CVE-2025-71123, CVE-2025-71125, CVE-2025-71126,
CVE-2025-71127, CVE-2025-71130, CVE-2025-71131, CVE-2025-71132,
CVE-2025-71133, CVE-2025-71135, CVE-2025-71136, CVE-2025-71137,
CVE-2025-71138, CVE-2025-71140, CVE-2025-71141, CVE-2025-71143,
CVE-2025-71144, CVE-2025-71147, CVE-2025-71148, CVE-2025-71149,
CVE-2025-71150, CVE-2025-71151, CVE-2025-71153, CVE-2025-71154,
CVE-2026-23209
Package Information:
https://launchpad.net/ubuntu/+source/linux-nvidia-lowlatency/6.8.0-1051.54.1
[USN-8198-2] Tornado vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8198-2
April 28, 2026
python-tornado vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 26.04 LTS
Summary:
Several security issues were fixed in Tornado.
Software Description:
- python-tornado: scalable, non-blocking web server and tools
Details:
USN-8198-1 fixed vulnerabilities in Tornado. This update provides the
corresponding updates for Ubuntu 26.04 LTS.
Original advisory details:
It was discovered that Tornado incorrectly handled parsing of large
multipart request bodies. An attacker could possibly use this issue to
cause a denial of service. (CVE-2026-31958)
It was discovered that Tornado did not properly validate characters in
cookie values. An attacker could possibly use this issue to inject
arbitrary cookie attributes. (CVE-2026-35536)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 26.04 LTS
python3-tornado 6.5.4-0.1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8198-2
https://ubuntu.com/security/notices/USN-8198-1
CVE-2026-31958, CVE-2026-35536
Package Information:
https://launchpad.net/ubuntu/+source/python-tornado/6.5.4-0.1ubuntu0.1
[USN-8217-1] follow-redirects vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8217-1
April 28, 2026
node-follow-redirects vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in follow-redirects.
Software Description:
- node-follow-redirects: Node.js module that automatically follows HTTP(S) redirects
Details:
It was discovered that follow-redirects did not properly protect sensitive
user information during redirects. An attacker could possibly use this
issue to expose sensitive information. This issue only affected Ubuntu
18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-0155)
It was discovered that follow-redirects did not properly remove sensitive
information before storage or transfer. An attacker could possibly use this
issue to expose sensitive information. This issue only affected Ubuntu
18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-0536)
It was discovered that follow-redirects did not properly validate URLs when
handling certain inputs. An attacker could possibly use this issue to
redirect users to a malicious site, resulting in information disclosure or
phishing attacks. (CVE-2023-26159)
It was discovered that follow-redirects did not properly clear proxy
authentication headers during cross-domain redirects. An attacker could
possibly use this issue to cause exposure of sensitive credentials.
(CVE-2024-28849)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS
node-follow-redirects 1.14.9+~1.14.1-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 20.04 LTS
node-follow-redirects 1.2.4-1ubuntu0.20.04.1~esm1
Available with Ubuntu Pro
Ubuntu 18.04 LTS
node-follow-redirects 1.2.4-1ubuntu0.18.04.1~esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8217-1
CVE-2022-0155, CVE-2022-0536, CVE-2023-26159, CVE-2024-28849
[USN-8219-1] UltraJSON vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8219-1
April 28, 2026
ujson vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 26.04 LTS
- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in UltraJSON.
Software Description:
- ujson: Ultra fast JSON encoder and decoder
Details:
Cameron Criswell discovered that UltraJSON contained a memory leak
that would occur when parsing large integers. An attacker could
possibly use this issue to cause UltraJSON to crash, resulting in a
denial of service. This issue only affected Ubuntu 24.04 LTS,
Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-32874)
It was discovered that UltraJSON contained integer overflow/underflow
issues when calculating how much memory to reserve for indentation in
certain instances. An attacker could possibly use this issue to cause
UltraJSON to crash, resulting in a denial of service. (CVE-2026-32875)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 26.04 LTS
python3-ujson 5.11.0-3ubuntu0.1
Ubuntu 25.10
python3-ujson 5.10.0-1ubuntu0.1
Ubuntu 24.04 LTS
python3-ujson 5.9.0-1ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 22.04 LTS
python3-ujson 5.1.0-1ubuntu0.1~esm2
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8219-1
CVE-2026-32874, CVE-2026-32875
Package Information:
https://launchpad.net/ubuntu/+source/ujson/5.11.0-3ubuntu0.1
https://launchpad.net/ubuntu/+source/ujson/5.10.0-1ubuntu0.1
