High severity7.4NVD Advisory· Published Aug 28, 2026

CVE-2026-82281

Description

Kotaemon through 0.12.0 fails to properly validate conversation ownership in select_conv, delete_conv, rename_conv, and on_set_public_conversation functions in control.py. Attackers can read other users' chat histories, delete conversations, or rename conversations by supplying arbitrary conversation identifiers without proper authorization checks.

Affected products

Cinnamon/Kotaemonreferences2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=0.12.0

Patches

Vulnerability mechanics

References

github.com/Cinnamon/kotaemon/blob/9ad3e4e49aa35b8acddd235918a5d9753c1cfdf9/libs/ktem/ktem/pages/chat/control.pynvd
github.com/Cinnamon/kotaemon/issues/846nvd
www.vulncheck.com/advisories/kotaemon-missing-ownership-check-in-conversation-functionsnvd

News mentions

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cvss	0.481
epss	0.000
exploit	0.000
kev	0.000
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ransomware	0.000