CVE-2026-121413
Low · 3.1CVSS
3.1
EPSS
0.3%
Published
Nov 3, 2026
CISA due date
—
The record
Parse Server before 8.6.112 and 9.0.0 before 9.10.6-alpha.4 contains an authorization bypass in the session upgrade endpoint, which creates a new session for any valid session token without enforcing the _Session class create class-level permission. Attackers holding a user's session token can send an already revocable token to /upgradeToRevocableSession to obtain additional sessions with fresh expiration that persist after the original session is logged out.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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Related vulnerabilities
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