SUSE Rancher up to 2.15.2 Meta Proxy /meta/proxy access control

Summaryinfo

A vulnerability classified as problematic has been found in SUSE Rancher up to 2.11.18/2.12.14/2.13.10/2.14.6/2.15.2. Affected by this issue is some unknown functionality of the file /meta/proxy of the component Meta Proxy. This manipulation causes access control. This vulnerability is registered as CVE-2026-88809. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in SUSE Rancher up to 2.11.18/2.12.14/2.13.10/2.14.6/2.15.2 and classified as problematic. Affected by this vulnerability is some unknown processing of the file /meta/proxy of the component Meta Proxy. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A security vulnerability exists in the SUSE Rancher Manager meta proxy endpoint (/meta/proxy). This endpoint is intended to forward requests only to  destinations that appear on a configured allowlist. The allowlist decision was evaluated in a  place where it could not stop a request from being forwarded, so a rejected destination was logged but the request was still handed to the proxy's transport. This affects SUSE Rancher 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11, 2.12.0 up to 2.12.15, 2.11.0 up to 2.11.19 and potentially older EOL versions.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-88809 since 09/10/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. 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 11/02/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 2.11.19, 2.12.15, 2.13.11, 2.14.7 or 2.15.3 eliminates this vulnerability.

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Productinfo

Vendor

• SUSE

Name

• Rancher

Version

• 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
• 2.11.14
• 2.11.15
• 2.11.16
• 2.11.17
• 2.11.18
• 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
• 2.12.10
• 2.12.11
• 2.12.12
• 2.12.13
• 2.12.14
• 2.13.0
• 2.13.1
• 2.13.2
• 2.13.3
• 2.13.4
• 2.13.5
• 2.13.6
• 2.13.7
• 2.13.8
• 2.13.9
• 2.13.10
• 2.14.0
• 2.14.1
• 2.14.2
• 2.14.3
• 2.14.4
• 2.14.5
• 2.14.6
• 2.15.0
• 2.15.1
• 2.15.2

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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