Several security updates have been released for AlmaLinux 9, addressing vulnerabilities in various packages, including Python, PHP, kernel, Java, and curl. The updates are categorized by severity, with one update marked as important due to its potential impact on system stability. Specific security fixes include excessive read buffering DoS in http.client, heap-based buffer overflow in array_merge(), and use-after-free in device mapper.

ALSA-2026:1410: python3.11 security update (Moderate)
ALSA-2026:1429: php:8.3 security update (Important)
ALSA-2026:1143: kernel security update (Important)
ALSA-2026:0932: java-1.8.0-openjdk security update (Important)
ALSA-2026:1350: curl security update (Moderate)
ALSA-2026:1408: python3.12 security update (Moderate)

ALSA-2026:1410: python3.11 security update (Moderate)

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AlmaLinux: 9
Type: Security
Severity: Moderate
Release date: 2026-01-29

Summary:

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es):

* cpython: Excessive read buffering DoS in http.client (CVE-2025-13836)
* cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service (CVE-2025-12084)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2026-1410.html

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Kind regards,
AlmaLinux Team

ALSA-2026:1429: php:8.3 security update (Important)

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You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-01-29

Summary:

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

Security Fix(es):

* php: heap-based buffer overflow in array_merge() (CVE-2025-14178)
* php: PHP: Information disclosure via getimagesize() function when reading multi-chunk images (CVE-2025-14177)
* php: PHP: Denial of Service via invalid character sequence in PDO PostgreSQL prepared statement (CVE-2025-14180)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2026-1429.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
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Kind regards,
AlmaLinux Team

ALSA-2026:1143: kernel security update (Important)

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You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-01-30

Summary:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: Linux kernel: Use-after-free in device mapper due to race condition in zone reporting (CVE-2025-38141)
* kernel: Linux kernel use-after-free in eventpoll (CVE-2025-38349)
* kernel: drm/xe: Fix vm_bind_ioctl double free bug (CVE-2025-38731)
* kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)
* kernel: mptcp: fix race condition in mptcp_schedule_work() (CVE-2025-40258)
* kernel: Linux kernel: Out-of-bounds write in Bluetooth MGMT can lead to information disclosure and denial of service (CVE-2025-40294)
* kernel: net: atlantic: fix fragment overflow handling in RX path (CVE-2025-68301)
* kernel: Bluetooth: hci_sock: Prevent race in socket write iter and sock bind (CVE-2025-68305)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2026-1143.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
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Kind regards,
AlmaLinux Team

ALSA-2026:0932: java-1.8.0-openjdk security update (Important)

Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-01-29

Summary:

The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

Security Fix(es):

* JDK: Improve JMX connections (CVE-2026-21925)
* JDK: Improve HttpServer Request handling (CVE-2026-21933)
* JDK: Enhance Certificate Checking (CVE-2026-21945)
* libpng: LIBPNG buffer overflow (CVE-2025-64720)
* libpng: LIBPNG heap buffer overflow (CVE-2025-65018)

Bug Fix(es):

* When using a P11SecretKey for both signing and encryption in FIPS mode, the FIPS PKCS11 provider would fail with a CKR_ATTRIBUTE_VALUE_INVALID error. This was due to the default configuration not applying the CKA_ENCRYPT=true attribute to the key. The configuration in this release is updated to include this attribute. (AlmaLinux-142865, AlmaLinux-142866, AlmaLinux-142867, AlmaLinux-142868, AlmaLinux-142869, AlmaLinux-142870, AlmaLinux-142871, AlmaLinux-142872, AlmaLinux-142873, AlmaLinux-142874)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2026-0932.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
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Kind regards,
AlmaLinux Team

ALSA-2026:1350: curl security update (Moderate)

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You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Moderate
Release date: 2026-01-29

Summary:

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

* curl: libcurl: Curl out of bounds read for cookie path (CVE-2025-9086)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2026-1350.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
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Kind regards,
AlmaLinux Team

ALSA-2026:1408: python3.12 security update (Moderate)

Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Moderate
Release date: 2026-01-29

Summary:

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es):

* cpython: Excessive read buffering DoS in http.client (CVE-2025-13836)
* cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service (CVE-2025-12084)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2026-1408.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
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Kind regards,
AlmaLinux Team