Medium severity · published Oct 1, 2026
CVE-2026-103279
Ghost 3.10.0 before 6.34.0 Session Invalidation Bypass
6.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
3.10.0 before 6.34.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103279
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103279
vendor-advisory
https://github.com/TryGhost/Ghost/security/advisories/GHSA-v9vj-6fq5-99xj
third-party-advisory
https://www.vulncheck.com/advisories/ghost-3.10.0-before-6.34.0-session-invalidation-bypass
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