CVE-2026-82280: Authorization Bypass Through User-Controlled Key in QuivrHQ quivr
Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.
CVE-2026-82280: Authorization Bypass Through User-Controlled Key in QuivrHQ quivr
Description
Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.
CVSS v4.0
Score 7.1high
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-28T11:12:50.590Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a91e416acd9273b4942e918
Added to database: 08/28/2026, 19:40:06 UTC
Last updated: 08/29/2026, 00:12:37 UTC
Views: 4
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