CVE-2026-82284
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
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.
Risk Assessment
The risk includes breach of user data confidentiality, unauthorized data deletion, and manipulation of conversation content, potentially leading to loss of trust and legal issues.
Recommendation
Update Quivr to a patched version and implement ownership-based access controls. Also regularly audit access logs.
Other vulnerabilities in Quivr
Original NVD description (English source)
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.