SSRF in SUSE Rancher
CVE-2026-88809
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/rancher/rancher/security/advisories/GHSA-f9gf-wh3x-jx3v (vendor-advisory)
Frequently asked questions
- What is CVE-2026-88809?
- CVE-2026-88809 is a high-severity vulnerability in SUSE Rancher, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.6/10. Published 2026-11-02.
- How severe is CVE-2026-88809?
- High severity. CVSS v3 base score is 7.6 out of 10.