Vulnerability in SUSE Rancher Manager's Meta Proxy Endpoint
CVE-2026-88809

7.6HIGH

Key Information:

Vendor

Suse
Status
Rancher
Vendor
CVE Published:
2 November 2026

What is CVE-2026-88809?

A security flaw exists within the meta proxy endpoint of the SUSE Rancher Manager, where the allowlist configuration does not effectively prevent requests to unauthorized destinations. Although rejected destinations are logged, the proxy still forwards requests without proper validation of the allowlist, exposing the system to potential unauthorized access. This issue affects multiple versions of SUSE Rancher, highlighting the importance of robust security measures in request handling.

Affected Version(s)

Rancher 2.15.0 < 2.15.3

Rancher 2.14.0 < 2.14.7

Rancher 2.13.0 < 2.13.11

References

https://github.com/rancher/rancher/security/advisories/GH...
vendor-advisory

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

๊น€๋„ํ˜„ <kimdxhyeon2@gmail.com
.