CVE-2026-44939CWE-95

Command injection through unsanitized YAML parameter in Rancher

Critical · published June 19, 2026

CVSS v4.0
9.4
EPSS
1%
Percentile
70.5
In the wild
Unconfirmed
What it is

A command injection vulnerability in the Rancher Manager cluster before 2.14.2 import endpoint /v3/import/{token}_{clusterId}.yaml through unsanitized YAML parameters could allow remote attackers to break out of an image, and execute e.g. malicious containers.

The record
Technical detail
CVSS v4.0
9.4 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.01313 · 70.5th percentile
Weakness
CWE-95 · Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Published
2026-06-19T12:13Z
EPSS history
Timeline
  • 19 JUN 12:13Z
    Command injection through unsanitized YAML parameter in Rancher
    cvelistv5