kotaemon 0.12.0 Unauthenticated Remote Code Execution via Insecure Deserialization
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.5%
from disclosure to weapon2 days
Published on NVDAug 4
1st PoC+2d
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Cinnamon · kotaemonpublic PoCs found — 2
githubgithub.com/0xdak/CVE-2026-69098_exploit★ 0cve_referencegithub.com/Cinnamon/kotaemon/issues/844unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.