SUSE Rancher up to 2.14.1 {token}_{clusterId}.yaml eval injection

Summaryinfo

A vulnerability was found in SUSE Rancher up to 2.10.11/2.11.13/2.12.9/2.13.5/2.14.1. It has been classified as very critical. Affected is an unknown function of the file /v3/import/{token}_{clusterId}.yaml. This manipulation causes eval injection. The identification of this vulnerability is CVE-2026-44939. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as very critical was found in SUSE Rancher up to 2.10.11/2.11.13/2.12.9/2.13.5/2.14.1. Affected by this vulnerability is an unknown code block of the file /v3/import/{token}_{clusterId}.yaml. The manipulation with an unknown input leads to a eval injection vulnerability. The CWE definition for the vulnerability is CWE-95. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval"). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE 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 advisory is shared at github.com. This vulnerability is known as CVE-2026-44939 since 05/08/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/19/2026).

Upgrading to version 2.10.12, 2.11.14, 2.12.10, 2.13.6 or 2.14.2 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• SUSE

Name

• Rancher

Version

• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3
• 2.10.4
• 2.10.5
• 2.10.6
• 2.10.7
• 2.10.8
• 2.10.9
• 2.10.10
• 2.10.11
• 2.11.0
• 2.11.1
• 2.11.2
• 2.11.3
• 2.11.4
• 2.11.5
• 2.11.6
• 2.11.7
• 2.11.8
• 2.11.9
• 2.11.10
• 2.11.11
• 2.11.12
• 2.11.13
• 2.12.0
• 2.12.1
• 2.12.2
• 2.12.3
• 2.12.4
• 2.12.5
• 2.12.6
• 2.12.7
• 2.12.8
• 2.12.9
• 2.13.0
• 2.13.1
• 2.13.2
• 2.13.3
• 2.13.4
• 2.13.5
• 2.14.0
• 2.14.1

License

• open-source

Website

• Vendor: https://www.suse.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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