CVE-2026-69098

kotaemon 0.12.0 Unauthenticated Remote Code Execution via Insecure Deserialization

Published Aug 4, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title kotaemon 0.12.0 Unauthenticated Remote Code Execution via Insecure Deserialization
First Time appeared Cinnamon
Cinnamon kotaemon
Weaknesses CWE-502
CPEs cpe:2.3:a:cinnamon:kotaemon:0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.1:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.2:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.3:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.4:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.5:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.3.6:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.2:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.3:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.4:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.5:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.6:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.7:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.8:*:*:*:*:*:*:*
cpe:2.3:a:cinnamon:kotaemon:0.4.9:*:*:*:*:*:*:*
Vendors & Products Cinnamon
Cinnamon kotaemon
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:08 PM
Reserved
Aug 3, 2026, 10:44 AM
Status
Deferred
Published
Aug 4, 2026, 4:16 PM
Modified
Oct 23, 2026, 11:10 PM