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[Security Advisory] ALSA-2026:86033: kernel security, bug fix, and enhancement update (Important)
by AlmaLinux Errata Notifications 21 Oct '26

21 Oct '26

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: 2026-10-21 Summary: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678) * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899) * kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032) * kernel: tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (CVE-2026-64024) * kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962) * kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974) * kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (CVE-2026-64114) * kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572) * kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509) * kernel: Linux kernel: Denial of Service due to incorrect GSO state handling in network fragment reassembly (CVE-2026-80590) * kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633) * kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817) * kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation () * kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260) * kernel: ipv4: validate checksum_start before completing checksum (CVE-2026-99999) Bug Fix(es) and Enhancement(s): * Batch: z-stream xfrm - almalinux-9.8.z (NST-Core-26W38) (JIRA:AlmaLinux-256697) 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-2026-86033.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85958: openssh security update (Moderate)
by AlmaLinux Errata Notifications 21 Oct '26

21 Oct '26

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: 2026-10-21 Summary: OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es): * openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw (CVE-2026-59997) * openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory (CVE-2026-59998) * openssh: OpenSSH: Denial of Service via excessive GSSAPI authentication attempts (CVE-2026-60000) 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-2026-85958.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85929: python3.12-urllib3 security update (Important)
by AlmaLinux Errata Notifications 21 Oct '26

21 Oct '26

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: 2026-10-21 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 via unbounded memory allocation in chunk parser (CVE-2026-97689) * urllib3: urllib3: Traffic interception via HTTPS proxy TLS configuration override (CVE-2026-97687) 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-2026-85929.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85277: hostapd security update (Moderate)
by AlmaLinux Errata Notifications 21 Oct '26

21 Oct '26

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: 2026-10-21 Summary: hostapd is a user space daemon for access point and authentication servers. It implements IEEE 802.11 access point management, IEEE 802.1X/WPA/WPA2/EAP Authenticators and RADIUS authentication server. hostapd is designed to be a "daemon" program that runs in the back-ground and acts as the backend component controlling authentication. hostapd supports separate frontend programs and an example text-based frontend, hostapd_cli, is included with hostapd. Security Fix(es): * hostapd: hostapd: Denial of Service via malformed Wi-Fi 7 Multi-Link Operation association request (CVE-2026-58374) 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-2026-85277.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85847: openssh security update (Moderate)
by AlmaLinux Errata Notifications 21 Oct '26

21 Oct '26

Hi, You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux. AlmaLinux: 10 Type: Security Severity: Moderate Release date: 2026-10-21 Summary: OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es): * openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw (CVE-2026-59997) * openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory (CVE-2026-59998) * openssh: OpenSSH: Denial of Service via excessive GSSAPI authentication attempts (CVE-2026-60000) 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/10/ALSA-2026-85847.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85321: kernel security, bug fix, and enhancement update (Important)
by AlmaLinux Errata Notifications 21 Oct '26

21 Oct '26

Hi, You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux. AlmaLinux: 10 Type: Security Severity: Important Release date: 2026-10-20 Summary: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678) * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: sctp: diag: reject stale associations in dump_one path (CVE-2026-52917) * kernel: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done (CVE-2026-63801) * kernel: sctp: fix race between sctp_wait_for_connect and peeloff (CVE-2026-63971) * kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962) * kernel: sctp: avoid auth_enable sysctl UAF during netns teardown (CVE-2026-68162) * kernel: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (CVE-2026-68117) * kernel: sctp: auth: verify auth requirement when auth_chunk is NULL (CVE-2026-68300) * kernel: sctp: validate stream count in sctp_process_strreset_inreq() (CVE-2026-68315) * kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509) * kernel: sctp: keep chunk->transport in step with the list it is queued on (CVE-2026-74588) * kernel: sctp: validate cookie AUTH state before use (CVE-2026-74752) * kernel: smb: client: reject a tree connect response whose byte count is too small (CVE-2026-89631) * kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633) * kernel: signal: Prevent exec() race (CVE-2026-98256) * kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260) Bug Fix(es) and Enhancement(s): * [10.2.z] kselftests: mm: hugepage-mremap: Bail out! mremap: Expected failure, but call succeeded (JIRA:AlmaLinux-181987) * [IBM 10.3 FEAT] zcrypt driver overwrite function - kernel part [almalinux-10.2.z] (JIRA:AlmaLinux-245336) * Batch: z-stream xfrm - rhel-10.2.z (NST-Core-26W38) (JIRA:AlmaLinux-256678) * RHIVOS - [backport] S32G Driver Enablement - USB (JIRA:AlmaLinux-257228) * Fix pending kernel issues for L1VH GA - Kernel (JIRA:AlmaLinux-267038) * Backport 6785011f8b16 ("ipv4: validate checksum_start before completing checksum") [almalinux-10.2.z] (JIRA:AlmaLinux-280590) 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/10/ALSA-2026-85321.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85239: python3 security update (Important)
by AlmaLinux Errata Notifications 20 Oct '26

20 Oct '26

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: 2026-10-20 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): * python: python: Arbitrary file deletion via race condition during temporary directory cleanup (CVE-2026-12345) * python: python: Certificate verification bypass via missing server_hostname validation in SSLContext.wrap_bio() (CVE-2026-19553) * python: Use-after-free of a server-side SSLContext when sni_callback switches contexts (CVE-2026-19445) 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-2026-85239.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85306: bubblewrap security update (Important)
by AlmaLinux Errata Notifications 20 Oct '26

20 Oct '26

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: 2026-10-20 Summary: Bubblewrap (/usr/bin/bwrap) is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces. Security Fix(es): * bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup (CVE-2026-87766) 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-2026-85306.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85773: kernel security, bug fix, and enhancement update (Important)
by AlmaLinux Errata Notifications 20 Oct '26

20 Oct '26

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: 2026-10-20 Summary: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196) * kernel: sctp: keep chunk->transport in step with the list it is queued on (CVE-2026-74588) * kernel: sctp: validate cookie AUTH state before use (CVE-2026-74752) * kernel: smb: client: reject a tree connect response whose byte count is too small (CVE-2026-89631) * kernel: sctp: stop processing a packet once its association is deleted (CVE-2026-89479) * kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817) * kernel: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (CVE-2026-93288) * kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation () * kernel: netfilter: flowtable: hold reference on ct until flow is released (CVE-2026-98320) Bug Fix(es) and Enhancement(s): * gfs2 filesystem withdrawal rework [AlmaLinux-8] (JIRA:AlmaLinux-129363) * Batch: z-stream xfrm - almalinux-8.10.z (NST-Core-26W38) (JIRA:AlmaLinux-256684) 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-2026-85773.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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[Security Advisory] ALSA-2026:85774: kernel-rt security, bug fix, and enhancement update (Important)
by AlmaLinux Errata Notifications 20 Oct '26

20 Oct '26

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: 2026-10-20 Summary: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196) * kernel: sctp: keep chunk->transport in step with the list it is queued on (CVE-2026-74588) * kernel: sctp: validate cookie AUTH state before use (CVE-2026-74752) * kernel: smb: client: reject a tree connect response whose byte count is too small (CVE-2026-89631) * kernel: sctp: stop processing a packet once its association is deleted (CVE-2026-89479) * kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817) * kernel: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (CVE-2026-93288) * kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation () * kernel: netfilter: flowtable: hold reference on ct until flow is released (CVE-2026-98320) Bug Fix(es) and Enhancement(s): * gfs2 filesystem withdrawal rework [AlmaLinux-8] (JIRA:AlmaLinux-129363) * Batch: z-stream xfrm - almalinux-8.10.z (NST-Core-26W38) (JIRA:AlmaLinux-256684) 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-2026-85774.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/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team

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