High
Quivr Chat Endpoints Missing Ownership Validation
Type: advisorySources: OSV
Quivr versions through 0.0.322 fail to validate chat ownership in the GET /chat/{chat_id}/history, DELETE /chat/{chat_id}, and POST /chat/{chat_id}/question/answer endpoints. Authenticated attackers can read other users' conversation histories including private knowledge base content, delete arbitrary chats, and inject fabricated messages into other users' conversations.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-82284
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 16:13 UTC · Revision 1
Source evidence
Quivr Chat Endpoints Missing Ownership Validation
core-osv · Original sourcePublished 28 Aug 2026, 16:19 UTC
Quivr versions through 0.0.322 fail to validate chat ownership in the GET /chat/{chat_id}/history, DELETE /chat/{chat_id}, and POST /chat/{chat_id}/question/answer endpoints. Authenticated attackers can read other users' conversation histories including private knowledge base content, delete arbitrary chats, and inject fabricated messages into other users' conversations.
osv:CVE-2026-82284
Complete source record
{
"id": "11a324b0a26e3277958474f24b63443e397c256b078cf3b9c1372dfaba395263",
"url": "https://osv.dev/vulnerability/CVE-2026-82284",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Quivr Chat Endpoints Missing Ownership Validation",
"summary": "Quivr versions through 0.0.322 fail to validate chat ownership in the GET /chat/{chat_id}/history, DELETE /chat/{chat_id}, and POST /chat/{chat_id}/question/answer endpoints. Authenticated attackers can read other users' conversation histories including private knowledge base content, delete arbitrary chats, and inject fabricated messages into other users' conversations.",
"evidence": "osv:CVE-2026-82284",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-82284",
"aliases": [
"CVE-2026-82284"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/The-Vibe-Company/quivr",
"type": "GIT",
"events": [
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"introduced": "0"
},
{
"last_affected": "029625e322fbe6958e63e41a49f444f278f2da6c"
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"database_specific": {
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"introduced": "0"
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{
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"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
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{
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"source": "DESCRIPTION"
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"database_specific": {
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}
}
],
"modified": "2026-10-28T02:30:30.464698941Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82284.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-82284",
"https://www.vulncheck.com/advisories/quivr-chat-endpoints-missing-ownership-validation",
"https://github.com/QuivrHQ/quivr/issues/3697",
"https://github.com/QuivrHQ/quivr",
"https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/chat/controller/chat_routes.py"
],
"provider_metadata": {
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],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82284.json"
}
},
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"evidence": "/id"
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],
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"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 497199,
"published_at": "2026-08-28T16:19:03.152+00:00"
}