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CVE-2026-82280highCWE-639

Quivr Prompt Endpoints Missing Ownership Validation

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.1epss 0.3%
exploitation probability
0.3%top 85% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
QuivrHQ · quivr
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.