Unauthenticated data access and deletion via REST API
Published Apr 6, 2026 · Updated Apr 6, 2026
Missing authentication in GPT Researcher 3.4.0 through 3.4.3 allows remote attackers to access and alter data through its REST API. The FastAPI routes in backend/server/app.py apply no authentication middleware or route-level identity checks before listing reports and files, uploading documents, deleting files, or starting research tasks. Any network client that can reach the service can read reports, modify or delete application data, and consume configured LLM resources without credentials.
Summary
What happened
Missing authentication in GPT Researcher 3.4.0 through 3.4.3 allows remote attackers to access and alter data through its REST API. The FastAPI routes in backend/server/app.py apply no authentication middleware or route-level identity checks before listing reports and files, uploading documents, deleting files, or starting research tasks. Any network client that can reach the service can read reports, modify or delete application data, and consume configured LLM resources without credentials.
The record
- CVE
- CVE-2026-5632
- Published
- Apr 6, 2026
- Updated
- Apr 6, 2026
- Vendor
- Assaf Elovic
- Product
- GPT Researcher
- Classifications
- CWE-306, CWE-287, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 6, 2026CVE publishedPublication date reported by the CVE source.
- Apr 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.4.0
- Affected versionversion=3.4.1
- Affected versionversion=3.4.2
- Affected versionversion=3.4.3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GitHub issue 1695 REST API proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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