CVE-2026-82280Quivr Prompt Endpoints Missing Ownership Validation
Updated under an hour ago ()
Does this affect you?
It affects QuivrHQ quivr. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- Weakness (CWE)
- CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
QuivrHQ quivr quivrhq:quivr (from the name) | through 0.0.322 | CNA record |
References
- https://github.com/QuivrHQ/quivr/issues/3698issue-tracking
- https://github.com/QuivrHQ/quivrproduct
- https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/prompt/controller/prompt_routes.pytechnical-description
- https://www.vulncheck.com/advisories/quivr-prompt-endpoints-missing-ownership-validationthird-party-advisory
- https://github.com/The-Vibe-Company/Quivr/issues/3698
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.