What is GHSA-937c-856w-w843?

GHSA-937c-856w-w843 is a security advisory published by GitHub Security Advisories with Medium severity. libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state...

Which CVE IDs does GHSA-937c-856w-w843 cover?

GHSA-937c-856w-w843 covers the following CVE IDs: CVE-2026-78135. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-937c-856w-w843?

GHSA-937c-856w-w843 has a CVSS v3 base score of 5.6, published by GitHub Security Advisories.

GHSA-937c-856w-w843MediumCVSS 5.6

libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state...

Vendor

GitHub Security Advisories

Published

September 11, 2026

Last Modified

September 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-78135 →

📋 Description

libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-78135
https://github.com/strongswan/strongswan/releases/tag/6.1.0
https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78135).html
https://github.com/advisories/GHSA-937c-856w-w843