kotaemon through 0.12.0 contains an insecure deserialization vulnerability in the checkconnection 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.checkoutput and arbitrary arguments, achieving remote code execution with application process privileges.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69098.json",
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-502"
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.12.0"
},
{
"fixed": "0.12.0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}