CVE-2026-44939 PUBLISHED

Command injection through unsanitized YAML parameter in Rancher

Assigner: suse
Reserved: 08.05.2026 Published: 19.06.2026 Updated: 19.06.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	SUSE
Product	Rancher
Versions	Default: unaffected affected from 2.14.0 to 2.14.2 (excl.) affected from 2.13.0 to 2.13.6 (excl.) affected from 2.12.0 to 2.12.10 (excl.) affected from 2.11.0 to 2.11.14 (excl.) affected from 2.10.0 to 2.10.12 (excl.)

References

https://github.com/rancher/rancher/security/advisories/GHSA-mhc6-2gfq-xx62

Problem Types

CWE-95 Improper neutralization of directives in dynamically evaluated code ('eval injection') CWE

Impacts

CAPEC-242 Code Injection