CVE-2026-88809

EUVD-2026-115258

02.11.2026, 16:17

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.

SSRF

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
suse	CNA	7.6 HIGH	NETWORK	LOW	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).

Vendor	Product	Version	Source
suse	rancher	2.15.0 ≤ 𝑥 < 2.15.3	CNA
suse	rancher	2.14.0 ≤ 𝑥 < 2.14.7	CNA
suse	rancher	2.13.0 ≤ 𝑥 < 2.13.11	CNA
suse	rancher	2.12.0 ≤ 𝑥 < 2.12.15	CNA
suse	rancher	2.11.0 ≤ 𝑥 < 2.11.19	CNA

Common Weakness Enumeration

CWE-918 - Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Vulnerability Media Exposure

[GERMAN] Rancher: Mehrere Schwachstellen
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Rancher ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Informationen auszulesen oder Daten zu manipulieren.
Published: 2026-10-29T23:00:00+00:00

References

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