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OpenAdvisories
High · 7.1 CVE-2026-82280 EUVD-2026-67811GHSA-2mxf-m4gh-hj3g

Quivr Prompt Endpoints Missing Ownership Validation

Published Aug 28, 2026 · Updated Sep 24, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
QuivrHQ quivr ≤ 0.0.322 —

References