RHSA-2026:67266: Security update for 2 packages

RHSA-2026:67266, released September 19, 2026, fixes 3 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.3

Base score, 0 to 10

Highest EPSS

0.0035

28th percentile

Priority of the 3 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 0

Fixed package versions

Product	Release	Fixed in
libkcapi	RHEL 8	0:1.4.0-3.el8_10
libkcapi-hmaccalc	RHEL 8	0:1.4.0-3.el8_10

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-71225	Libkcapi: iv reuse in libkcapi one-shot symmetric cipher chunking causes cipher state reset across chunk boundaries	7.3	0.0035	None reported
High	CVE-2026-71227	Libkcapi: infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout return	7.3	0.0020	None reported
High	CVE-2026-71226	Libkcapi: memory corruption via uncanceled aio requests on error in libkcapi's one-shot aio path	7.3	0.0015	None reported

Also fixes CVE-2026-71225

RHSA-2026:67265
libkcapi, libkcapi-hmaccalc on RHEL 9
RLSA-2026:67265
libkcapi on rocky 9
RLSA-2026:67267
libkcapi on rocky 10
RLSA-2026:67266
libkcapi on rocky 8
ELSA-2026-67267-0
libkcapi, libkcapi-hasher, libkcapi-hmaccalc on ol 10
ALSA-2026:67265
libkcapi, libkcapi-hmaccalc on almalinux 9
ALSA-2026:67266
libkcapi, libkcapi-hmaccalc on almalinux 8
ALSA-2026:67267
libkcapi, libkcapi-hasher, libkcapi-hmaccalc on almalinux 10

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:67266

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