CVE-2026-88809

HighCVSS 7.6/10Last modified Nov 2, 2026

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.

Metrics

CVSS 3.1 7.6/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Weakness enumeration

CWE-918

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
SUSE	Rancher	>= 2.15.0, < 2.15.3; >= 2.14.0, < 2.14.7; >= 2.13.0, < 2.13.11; >= 2.12.0, < 2.12.15; >= 2.11.0, < 2.11.19

References

https://github.com/rancher/rancher/security/advisories/GHSA-f9gf-wh3x-jx3v

Timeline

Published: Nov 2, 2026
Last modified: Nov 2, 2026
NVD status: Awaiting Analysis

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