Vulnerability DatabaseCVE-2026-82280
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-82280
Published:August 28, 2026
Updated:September 24, 2026
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.
Related Resources (7)
https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/prompt/controller/prompt_routes.py
https://github.com/QuivrHQ/quivr
https://github.com/QuivrHQ/quivr/issues/3698
https://www.vulncheck.com/advisories/quivr-prompt-endpoints-missing-ownership-validation
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82280.json
https://github.com/The-Vibe-Company/Quivr/issues/3698
https://nvd.nist.gov/vuln/detail/CVE-2026-82280
Do you need more information?
Contact Us
CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
CWE-639
EPSS
Base Score:
0.20