ALSA-2026:29844: tigervnc security update (Important)
ALSA-2026:29703: containernetworking-plugins security update (Important)
ALSA-2026:29981: golang security, bug fix, and enhancement update (Moderate)
ALSA-2026:30859: perl-IO-Compress security update (Important)
ALSA-2026:29702: runc security update (Important)
ALSA-2026:30852: perl-Archive-Tar security update (Important)
ALSA-2026:32992: python3.12-urllib3 security update (Important)
ALSA-2026:30858: perl-IO-Compress security update (Important)
ALSA-2026:30853: git-lfs security update (Important)
ALSA-2026:29844: tigervnc 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: 2026-06-29
Summary:
Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients.
Security Fix(es):
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch (CVE-2026-50256)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in miSyncDestroyFence() (CVE-2026-50257)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels (CVE-2026-50258)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing (CVE-2026-50259)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in FreeCounter() (CVE-2026-50260)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in SyncChangeCounter() (CVE-2026-50261)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds read/write in GLX ChangeDrawableAttributes (CVE-2026-50262)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow() (CVE-2026-50263)
* xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat (CVE-2026-50264)
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-2026-29844.html
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Kind regards,
AlmaLinux Team
ALSA-2026:29703: containernetworking-plugins 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: 2026-06-29
Summary:
The Container Network Interface (CNI) project consists of a specification and libraries for writing plug-ins for configuring network interfaces in Linux containers, along with a number of supported plug-ins. CNI concerns itself only with network connectivity of containers and removing allocated resources when the container is deleted.
Security Fix(es):
* net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
* crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)
* crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)
* crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
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-2026-29703.html
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Kind regards,
AlmaLinux Team
ALSA-2026:29981: golang security, bug fix, and enhancement 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: 2026-06-29
Summary:
The golang packages provide the Go programming language compiler.
Security Fix(es):
* net/textproto: golang: Golang net/textproto: Misleading error messages via input injection (CVE-2026-42507)
Bug Fix(es) and Enhancement(s):
* Update Go to version 1.26.4+1 [almalinux-9.8.z] (JIRA:AlmaLinux-183350)
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-2026-29981.html
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AlmaLinux Team
ALSA-2026:30859: perl-IO-Compress 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: 2026-06-29
Summary:
This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries. IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 (i.e. gzip) and zip files/buffers. The following modules used to be distributed separately, but are now included with the IO-Compress distribution:
* Compress-Zlib
* IO-Compress-Zlib
* IO-Compress-Bzip2
* IO-Compress-Base
Security Fix(es):
* perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob (CVE-2026-48962)
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-2026-30859.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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AlmaLinux Team
ALSA-2026:29702: runc 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: 2026-06-29
Summary:
The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.
Security Fix(es):
* net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
* crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)
* crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
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-2026-29702.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-2026:30852: perl-Archive-Tar security update (Important)
Hi,
You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.
AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-29
Summary:
Archive::Tar provides an object oriented mechanism for handling tar files. It provides class methods for quick and easy files handling while also allowing for the creation of tar file objects for custom manipulation. If you have the IO::Zlib module installed, Archive::Tar will also support compressed or gzipped tar files.
Security Fix(es):
* perl-archive-tar: perl-archive-tar: Path traversal via crafted symlinks allows arbitrary file access (CVE-2026-42496)
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/8/ALSA-2026-30852.html
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Kind regards,
AlmaLinux Team
ALSA-2026:32992: python3.12-urllib3 security update (Important)
Hi,
You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.
AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-29
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):
* urllib3: urllib3: Denial of Service due to excessive HTTP response decompression (CVE-2026-44432)
* urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers (CVE-2026-44431)
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/8/ALSA-2026-32992.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-2026:30858: perl-IO-Compress security update (Important)
Hi,
You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.
AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-29
Summary:
This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries. IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 (i.e. gzip) and zip files/buffers. The following modules used to be distributed separately, but are now included with the IO-Compress distribution:
* Compress-Zlib
* IO-Compress-Zlib
* IO-Compress-Bzip2
* IO-Compress-Base
Security Fix(es):
* perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob (CVE-2026-48962)
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/8/ALSA-2026-30858.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-2026:30853: git-lfs security update (Important)
Hi,
You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.
AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-29
Summary:
Git Large File Storage (LFS) replaces large files such as audio samples, videos, datasets, and graphics with text pointers inside Git, while storing the file contents on a remote server.
Security Fix(es):
* golang.org/x/net/idna: golang: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)
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/8/ALSA-2026-30853.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
