ELSA-2026-90492: libreswan security update

ELSA-2026-90492, released November 7, 2026, fixes 3 CVEs in libreswan (version 0:4.12-2.0.1.el8_10.7). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.5

Base score, 0 to 10

Highest EPSS

0.0066

51st percentile

Priority of the 3 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 0

Fixed package versions

Product	Release	Fixed in
libreswan	ol 8	0:4.12-2.0.1.el8_10.7

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-77206	IKEv2 pre-authentication Null Pointer Dereference in EAP code	7.5	0.0066	None reported
High	CVE-2026-77207	Null Pointer Dereference in PKCS#7 bundle with no certificates	7.5	0.0046	None reported
High	CVE-2026-94453	IKEv2 Use-After-Free bug when using IKE-over-TCP	7.5	0.0045	None reported

Also fixes CVE-2026-77206

ELSA-2026-89748
libreswan on ol 9
ALSA-2026:89748
libreswan on almalinux 9
ALSA-2026:90492
libreswan on almalinux 8
RLSA-2026:89748
libreswan on rocky 9
RLSA-2026:90492
libreswan on rocky 8
RHSA-2026:90492
libreswan on RHEL 8
RHSA-2026:89748
libreswan on RHEL 9

Vendor advisory

https://linux.oracle.com/errata/ELSA-2026-90492.html

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