Is there a public exploit for CVE-2026-88809?

No public exploit for CVE-2026-88809 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-88809?

CVE-2026-88809 scores CVSS 7.6 (v3.1), rated high.

What does CVE-2026-88809 affect?

CVE-2026-88809 affects SUSE Rancher.

7.6 High

A security vulnerability exists in the SUSE Rancher Manager meta proxy endpoint (/meta/proxy).

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.

Assessment

CVSS: 7.6 (v3.1)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 2 November 2026
Last updated: 2 November 2026
Affected: SUSE · Rancher
Assigner: suse

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

At the source

EUVD (ENISA)

References

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

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