GHSA-gq2m-77hf-vwgh
Medium · 5.4OliveTin Session Fixation: Logout Fails to Invalidate Server-Side Session
CVSS
5.4
EPSS
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Published
Mar 5, 2026
CISA due date
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The record
OliveTin does not revoke server-side sessions when a user logs out. Although the browser cookie is cleared, the corresponding session remains valid in server storage until expiry (default ≈ 1 year). An attacker with a previously stolen or captured session cookie can continue authenticating after logout, resulting in a post-logout authentication bypass. This is a session management flaw that violates expected logout semantics.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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