SUSE Rancher up to 0.12.14/0.13.10/0.14.5/0.15.1 Bundle Reader fleet.yaml helmRepoURLRegex incorrect regex

Summaryinfo

A vulnerability labeled as problematic has been found in SUSE Rancher up to 0.12.14/0.13.10/0.14.5/0.15.1. This vulnerability affects unknown code of the file fleet.yaml of the component Bundle Reader. Executing a manipulation of the argument helmRepoURLRegex can lead to incorrect regex. This vulnerability is handled as CVE-2026-44936. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in SUSE Rancher up to 0.12.14/0.13.10/0.14.5/0.15.1 and classified as problematic. This vulnerability affects an unknown part of the file fleet.yaml of the component Bundle Reader. The manipulation of the argument helmRepoURLRegex with an unknown input leads to a incorrect regex vulnerability. The CWE definition for the vulnerability is CWE-185. The product specifies a regular expression in a way that causes data to be improperly matched or compared. As an impact it is known to affect confidentiality. CVE summarizes:

Missing filtering when the helmRepoURLRegex field isn't set on a GitRepo resource in SUSE Rancher Fleet's bundle reader in 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 forwards Helm authentication credentials (BasicAuth) to any URL specified in the helm.repo field of a fleet.yaml file, allowing attackers able to push to fleet monitored git repos to leak helm access credentials.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-44936 since 05/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/06/2026).

Upgrading to version 0.12.15, 0.13.11, 0.14.6 or 0.15.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-41863). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• SUSE

Name

• Rancher

Version

• 0.12.0
• 0.12.1
• 0.12.2
• 0.12.3
• 0.12.4
• 0.12.5
• 0.12.6
• 0.12.7
• 0.12.8
• 0.12.9
• 0.12.10
• 0.12.11
• 0.12.12
• 0.12.13
• 0.12.14
• 0.13.0
• 0.13.1
• 0.13.2
• 0.13.3
• 0.13.4
• 0.13.5
• 0.13.6
• 0.13.7
• 0.13.8
• 0.13.9
• 0.13.10
• 0.14.0
• 0.14.1
• 0.14.2
• 0.14.3
• 0.14.4
• 0.14.5
• 0.15.0
• 0.15.1

License

• open-source

Website

• Vendor: https://www.suse.com/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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