CVE-2026-44939
Rancher vulnerable to command injection through unsanitized YAML parameter in github.com/rancher/rancher
Description
Rancher vulnerable to command injection through unsanitized YAML parameter in github.com/rancher/rancher. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/rancher/rancher from v2.10.0 before v2.10.12, from v2.11.0 before v2.11.14, from v2.12.0 before v2.12.10, from v2.13.0 before v2.13.6, from v2.14.0 before v2.14.2.
How to fix CVE-2026-44939
To remediate CVE-2026-44939, upgrade the affected package to a fixed version below.
- —upgrade to 2.14.2 or later
- —upgrade to 0.0.0-20260617231817-2aa77eb283e7 or later
Is CVE-2026-44939 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 2.14.0, < 2.14.2
- from 0, < 0.0.0-20260617231817-2aa77eb283e7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |
| osv | CVSS 3.1 | CRITICAL9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |