RHSA-2026:91650: Security update for 2 packages

RHSA-2026:91650, released October 29, 2026, fixes 5 CVEs across 2 products. One of them is being exploited (CVE-2026-53266); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV

CVEs closed

1 rated Critical

Exploited

CVE-2026-53266

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0093

60th percentile

Priority of the 5 CVEs

Patch now 1
                                Urgent 1
                                High 3
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kpatch-patch-5_14_0-687_10_1	RHEL 9	0:1-11.el9_8
kpatch-patch-5_14_0-687_42_1	RHEL 9	0:1-2.el9_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2026-53266	netfilter: bridge: make ebt_snat ARP rewrite writable	8.8	0.0093	KEVExploited
Urgent	CVE-2026-68121	pppoe: reload header pointer after dev_hard_header()	9.8	0.0037	None reported
High	CVE-2026-74480	net: bridge: stop fast-leave after deleting a port group	9.8	0.0058	None reported
High	CVE-2026-80844	xfrm: ah6: validate routing header segments_left	8.3	0.0043	None reported
High	CVE-2026-74582	packet: use consistent hard_header_len in non-ring send paths	9.8	0.0012	None reported

Also fixes CVE-2026-53266

SUSE-SU-2026:22835-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 16.0
OPENSUSE-SU-2026:21388-1
dtb-aarch64, kernel-64kb, kernel-azure and 10 more on opensuse-leap 16.0
SUSE-SU-2026:2799-1
kernel-livepatch-SLE15-SP7-RT_Update_17 on sles 15.7
SUSE-SU-2026:2800-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
RHSA-2026:71326
kernel on RHEL 10
RHSA-2026:39082
kernel-rt, kernel-rt-core, kernel-rt-debug and 9 more on RHEL 8
RHSA-2026:39083
bpftool, kernel, kernel-abi-stablelists and 20 more on RHEL 8
ALSA-2026:39082
kernel-rt, kernel-rt-core, kernel-rt-debug and 7 more on almalinux 8

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:91650

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