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7.6 High

CVE-2026-88809 A security vulnerability exists in the SUSE Rancher Manager meta proxy endpoint (/meta/proxy)

Description

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.

Affected products and versions

Product Affected versions Fixed in
Rancher 2.15 2.15.0 → < 2.15.3 2.15.3
Rancher 2.14 2.14.0 → < 2.14.7 2.14.7
Rancher 2.13 2.13.0 → < 2.13.11 2.13.11
Rancher 2.12 2.12.0 → < 2.12.15 2.12.15
Rancher 2.11 2.11.0 → < 2.11.19 2.11.19

Other CVEs of Rancher

The 86 CVEs of Rancher →
CVE-2026-88811 Missing filtering in the SUSE Rancher Manager meta proxy could cause passed in rancher credentials to be leaked to cloud… 9.1 Critical CVE-2026-88810 A privilege escalation issue was discovered in Rancher Manager's role-based access control 7.2 High CVE-2026-94290 SUSE Rancher Fleet clusters reference a kubeconfig secret that the controller uses to install and manage a Fleet agent… 9.1 Critical CVE-2026-104623 A security vulnerability exists in the authorization handling for the local (management) cluster shell feature of SUSE… 6.3 Medium
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