RHSA-2026:59146: Security update for 5 packages

RHSA-2026:59146, released August 28, 2026, fixes 4 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.4

Base score, 0 to 10

Highest EPSS

0.0537

92nd percentile

Priority of the 4 CVEs

Patch now 0
                                Urgent 0
                                High 4
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kpatch-patch-4_18_0-553_109_1	RHEL 8	0:1-10.el8_10
kpatch-patch-4_18_0-553_125_1	RHEL 8	0:1-7.el8_10
kpatch-patch-4_18_0-553_53_1	RHEL 8	0:1-17.el8_10
kpatch-patch-4_18_0-553_72_1	RHEL 8	0:1-14.el8_10
kpatch-patch-4_18_0-553_85_1	RHEL 8	0:1-12.el8_10

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-43499	rtmutex: Use waiter::task instead of current in remove_waiter()	7.8	0.0537	None reported
High	CVE-2026-45984	kpatch-patch-4_18_0-553_109_1: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a run...	7.8	0.0018	None reported
High	CVE-2026-46116	xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete	8.4	0.0013	None reported
High	CVE-2026-46227	sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL	8.4	0.0010	None reported

Also fixes CVE-2026-43499

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
ALSA-2026:39083
bpftool, kernel, kernel-abi-stablelists and 22 more on almalinux 8
ELSA-2026-39083
bpftool, kernel, kernel-abi-stablelists and 17 more on ol 8
SUSE-SU-2026:2482-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
SUSE-SU-2026:2591-1
kernel-livepatch-SLE15-SP7-RT_Update_16 on sles 15.7
SUSE-SU-2026:2310-1
kernel-default, kernel-default-base, kernel-docs and 4 more on sles 15.6

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:59146

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