Description
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.
Metrics
CVSS 3.1 3.1/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| parse-community | parse-server | >= 9.0.0, < 9.10.6-alpha.4 |
| parse-community | parse-server | < 8.6.112 |
References
- https://github.com/parse-community/parse-server/pull/10808
- https://github.com/parse-community/parse-server/pull/10809
- https://github.com/parse-community/parse-server/security/advisories/GHSA-2j2x-c587-q33g
- https://www.vulncheck.com/advisories/parse-server-before-8.6.112-and-9.0.0-before-9.10.6-alpha.4-session-permission-bypass-via-upgradetorevocablesession
Timeline
- Published
- Nov 3, 2026
- Last modified
- Nov 3, 2026
- NVD status
- Awaiting Analysis