Ghost 3.10.0 before 6.34.0 Session Invalidation Bypass
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-613.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Ghost (TryGhost) Fixed in 6.34.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
TryGhost Ghost 6.34.0
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-65652 Ghost 2.5.0 before 6.34.0 Untrusted Script Execution via oEmbedPriority LOW 39
- TI-2026-65653 Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframePriority LOW 38
Timeline
- 2026-10-02 Threatist record created from CVE-2026-103279
- 2026-10-03 Alias added: GHSA-v827-452p-mh2j
- 2026-10-06 CISA SSVC decision points changed
References
More TryGhost vulnerabilities
- TI-2026-21459 Ghost has a SQL Injection in its Content API CVSS 3.1CRITICAL 9.4
- TI-2022-10277 An arbitrary file upload vulnerability in the file upload module of Ghost v4.39.0 allows… CVSS 3.1CRITICAL 9.8
- TI-2024-22785 Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit… CVSS 3.1CRITICAL 9.1
- TI-2023-14843 Ghost vulnerable to disclosure of private API fields CVSS 3.1HIGH 7.5
- TI-2025-09049 Ghost 6.0.6 - SSRF via oEmbed Bookmark CVSS 4.0MEDIUM 6.1
- TI-2023-20918 Arbitrary file read via symlinks in Ghost CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-103279 · CVE Program
- CVE-2026-103279 · NVD
- FIRST EPSS
- GHSA-v827-452p-mh2j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences