CVE-2026-69098
kotaemon 0.12.0 Unauthenticated Remote Code Execution via Insecure Deserialization
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
kotaemon through 0.12.0 contains an insecure deserialization vulnerability in the check_connection endpoint that allows unauthenticated attackers to instantiate arbitrary Python classes by supplying crafted YAML/JSON input with a __type__ field. Attackers can exploit this to override the __type__ field with subprocess.check_output and arbitrary arguments, achieving remote code execution with application process privileges.
| CWE | CWE-502 |
| Vendor | cinnamon |
| Product | kotaemon |
| Published | Aug 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Cinnamon / kotaemon
0 ≤ 0.12.0
References
Credits
HK4zCzi