Quick answers
- Is CVE-2026-103279 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103279 being exploited in the wild.
- How severe is CVE-2026-103279?
- Medium severity, with a CVSS score of 6.8, published 1 October 2026.
- Which products and versions are affected?
- TryGhost Ghost 3.10.0 through 6.33.x.
- Is there a fix for CVE-2026-103279?
- Yes: fixed in v6.34.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-103279 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-103279?
- Check whether you run TryGhost Ghost at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: v6.34.0
Technical details
The vulnerability is an insufficient session expiration issue (CWE-613) in Ghost's admin authentication system. When a user changes their password, not all existing sessions are properly invalidated, allowing an attacker with a stolen session cookie to maintain authenticated access. The attack requires network access and a low-privilege user session cookie, with no user interaction needed once the cookie is obtained.
Affected products
- TryGhost Ghost 3.10.0 through 6.33.x
Timeline
- 2026-08-13: disclosed: GitHub security advisory published
- 2026-10-01: advisory: NVD entry published