Incomplete Cleanup Affecting libreswan-minimal package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-CENTOS10-LIBRESWANMINIMAL-20928715
  • published14 Oct 2026
  • disclosed5 Oct 2026

Introduced: 5 Oct 2026

NewCVE-2026-77205  (opens in a new tab)
CWE-459  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 libreswan-minimal.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreswan-minimal package and not the libreswan-minimal package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out legitimate peers from connecting. The add_decoded_cert() function missed a call to CERT_DestroyCertificate() due to an incorrect fix for CVE-2026-14957. Sending bogus certificates with new serial numbers could prevent the real certificates with those serial numbers from connecting until the service has restarted.

CVSS Base Scores

version 3.1