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CVE-2026-82284 — Quivr versions through 0.0.322 fail to validate chat ownership in the GET…

Key facts

CVE-2026-82284 is a High (8.1) vulnerability: Quivr versions through 0.0.322 fail to validate chat ownership in the GET…. This entry ships a detection-only PoC and a Docker test lab.
CVE CVE-2026-82284
Severity High (8.1)
Detection / prevention —
PoC poc.py
Source 2026/CVE-2026-82284/

Details

English | 한국어

Description

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.

Vulnerability Details

Property Value
CVE ID CVE-2026-82284
Type IDOR
CVSS Score 8.1

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-82284/poc.py

Usage

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start

# Clone and navigate to CVE directory
cd CVE-2026-82284

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints

Application URL Status
Vulnerable App http://localhost:8080 Shows vulnerability
Patched App http://localhost:8081 Demonstrates fix

Directory Structure

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References

  • https://github.com/QuivrHQ/quivr
  • https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/chat/controller/chat_routes.py
  • https://github.com/QuivrHQ/quivr/issues/3697
  • https://www.vulncheck.com/advisories/quivr-chat-endpoints-missing-ownership-validation
  • https://github.com/QuivrHQ/quivr/issues/3697

Generated by PoC Generator on 2026-08-29T20:11:37.474210972

Frequently asked questions

What is CVE-2026-82284?

CVE-2026-82284 is a High (8.1) vulnerability: Quivr versions through 0.0.322 fail to validate chat ownership in the GET…. This entry ships a detection-only PoC and a Docker test lab.

How do I detect CVE-2026-82284?

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2026-82284?

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

For authorized security testing and research only. See the full source and NVD record.