What is CVE-2026-103279?

CVE-2026-103279 is a medium-severity vulnerability in Tryghost Ghost, classified under Insufficient Session Expiration. CVSS score: 6.8/10. Published 2026-10-01.

How severe is CVE-2026-103279?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Tryghost Ghost

CVE-2026-103279

Ghost versions from 3.10.0 before 6.34.0 fail to fully invalidate all sessions after a password change. Attackers with a stolen session cookie can maintain access to user accounts even after the associated user changes their password.

Published 2026-10-01.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tryghost Ghost

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/TryGhost/Ghost/security/advisories/GHSA-v9vj-6fq5-99xj (vendor-advisory)
www.vulncheck.com/advisories/ghost-3.10.0-before-6.34.0-session-invalidation-by… (third-party-advisory)

Frequently asked questions

What is CVE-2026-103279?: CVE-2026-103279 is a medium-severity vulnerability in Tryghost Ghost, classified under Insufficient Session Expiration. CVSS score: 6.8/10. Published 2026-10-01.
How severe is CVE-2026-103279?: Medium severity. CVSS v3 base score is 6.8 out of 10.