# CVE-2026-103279: Ghost session invalidation bypass on password change

Source: https://junglewise.ai/threats/cve-2026-103279-ghost-versions-from-3-10-0-before-6-34-0-fail-to-fully  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-01. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-103279 · Severity: medium · CVSS 6.8 · Published 2026-10-01

Ghost is a content management platform used to host and manage websites and blogs. A flaw in versions 3.10.0 through 6.33.x fails to invalidate all active sessions when a user changes their password. An attacker with a stolen session cookie can retain access to user accounts even after the legitimate user changes their password, allowing account takeover without requiring the new password.

Technologies: [TryGhost Ghost](https://junglewise.ai/threats/technologies/tryghost-ghost). Vendors: [TryGhost](https://junglewise.ai/threats/vendors/tryghost).

## 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

## References

- [https://github.com/TryGhost/Ghost/security/advisories/GHSA-v9vj-6fq5-99xj](https://github.com/TryGhost/Ghost/security/advisories/GHSA-v9vj-6fq5-99xj)
- [https://www.vulncheck.com/advisories/ghost-3.10.0-before-6.34.0-session-invalidation-bypass](https://www.vulncheck.com/advisories/ghost-3.10.0-before-6.34.0-session-invalidation-bypass)

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