CVE-2026-82271: Authorization Bypass Through User-Controlled Key in SciPhi-AI R2R
Description
R2R through 3.6.5 fails to properly validate user ownership in conversation update and message handlers, allowing authenticated users to modify other users' conversations. Attackers can supply arbitrary conversation identifiers to rename conversations and append messages to other users' conversation histories, corrupting state and injecting malicious content.
CVSS v4.0
Score 7.1high
Affected software
SciPhi-AI
R2R
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SciPhi-AI R2R versions up to 3.6.5 do not properly validate user ownership in conversation update and message handlers. This flaw enables authenticated users to bypass authorization controls by providing arbitrary conversation IDs, allowing them to rename conversations and append messages in other users' conversation histories. The vulnerability is classified with a CVSS 4.0 score of 7.1, indicating high severity.
Potential Impact
Authenticated users can manipulate conversations of other users, leading to unauthorized data modification, corruption of conversation state, and potential injection of malicious content into other users' conversation histories. This compromises data integrity and user trust within the affected application.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict authenticated user permissions where possible and monitor for suspicious conversation modifications.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-28T11:12:38.809Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a91e413acd9273b4942e8d6
Added to database: 08/28/2026, 19:40:03 UTC
Last enriched: 09/25/2026, 02:43:30 UTC
Last updated: 10/12/2026, 18:48:23 UTC
Views: 85
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