{
"id": "GHSA-2mxf-m4gh-hj3g",
"aliases": [
"CVE-2026-82280"
],
"details": "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": [],
"modified": "2026-08-31T21:31:59Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"
},
{
"type": "CVSS_V4",
"score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"published": "2026-08-28T21:31:26Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82280",
"type": "ADVISORY"
},
{
"url": "https://github.com/QuivrHQ/quivr/issues/3698",
"type": "WEB"
},
{
"url": "https://github.com/The-Vibe-Company/Quivr/issues/3698",
"type": "WEB"
},
{
"url": "https://github.com/QuivrHQ/quivr",
"type": "WEB"
},
{
"url": "https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/prompt/controller/prompt_routes.py",
"type": "WEB"
},
{
"url": "https://www.vulncheck.com/advisories/quivr-prompt-endpoints-missing-ownership-validation",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"severity": "HIGH",
"github_reviewed": false,
"nvd_published_at": "2026-08-28T20:20:19Z",
"github_reviewed_at": null
}
}