Rancher meta proxy allowlist bypass leading to server-side request forgery (SUSE Rancher)

CVE-2026-88809
HIGH 7.6

At a glance

Source
CVE.org
State
PUBLISHED
Published
Updated
Assigner
suse

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.

Weaknesses (CWE)

  • CWE-918 — Server-Side Request Forgery

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.6CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:Nsuse

European references

Affected products

ProductVersions
SUSE · Rancheraffected 2.15.0 < 2.15.3 ; affected 2.14.0 < 2.14.7 ; affected 2.13.0 < 2.13.11 ; affected 2.12.0 < 2.12.15 ; affected 2.11.0 < 2.11.19

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
ENISA EUVDENISA — reproduction authorised, source acknowledged