CVE-2026-82280— Quivr Prompt Endpoints Missing Ownership Validation
Quick assessment
Affected
QuivrHQ quivr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Quivr 在 0.0.322 及更早版本中，提示词（prompt）端点未对所有权进行有效验证，导致经过身份验证的用户可以通过标识符修改任意提示词。拥有共享“brain”（知识库/工作区）只读权限的攻击者，可以读取已暴露的提示词标识符，并覆盖系统提示词，从而影响所有使用该 brain 的用户。
Possible ATT&CK Techniques 1 AI
T1110 · Brute Force
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-82280
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Quivr Prompt Endpoints Missing Ownership Validation
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-82280
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-82280
请登录查看更多情报信息。
Patches & Fixes for CVE-2026-82280 (1)
Vendor Advisories for CVE-2026-82280 (2)
Proof of Concept for CVE-2026-82280 (1)
-
🔗 GitHub - QuivrHQ/quivr: Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want. · GitHub Read full article product
IV. Related Vulnerabilities
Same weakness: CWE-639
-
CVE-2026-55867
Graylog token revocation endpoint allows authenticated users -
CVE-2026-19294
Langflow is affected by multiple authentication bypass, path -
CVE-2026-18904
Langflow is affected by multiple authentication bypass, path -
CVE-2026-55067
Vikunja: Authenticated cross-tenant kanban-bucket relocation -
CVE-2026-55066
Vikunja: Cross-tenant IDOR in kanban move-task endpoint via
V. Comments for CVE-2026-82280
No comments yet