CVE-2026-69098
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductCinnamon Kotaemon
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Cinnamon kotaemon | v ≤ 0.12.0 | — |
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