Medium severity6.5NVD Advisory· Published Aug 28, 2026

CVE-2026-82271

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Sciphi AI/R2rreferences2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <3.6.5

Patches

Vulnerability mechanics

References

github.com/SciPhi-AI/R2R/blob/9c5a94d151f90876bd7eb860f300a8fd662dc481/py/core/main/api/v3/conversations_router.pynvd
github.com/SciPhi-AI/R2R/issues/2292nvd
www.vulncheck.com/advisories/r2r-missing-ownership-check-allows-modifying-other-users-conversationsnvd

News mentions

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000