Is there a public exploit for CVE-2026-88810?

No public exploit for CVE-2026-88810 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-2026-88810?

CVE-2026-88810 scores CVSS 7.2 (v3.1), rated high.

What does CVE-2026-88810 affect?

CVE-2026-88810 affects SUSE Rancher.

7.2 High

A privilege escalation issue was discovered in Rancher Manager's role-based access control.

CVE-2026-88810

A privilege escalation issue was discovered in Rancher Manager's role-based access control. The inheritedNamespacedRules field of a GlobalRole propagates permissions into named namespaces of every downstream cluster managed by the Rancher instance, but it was not subject to the privilege-escalation validation applied to the other permission-carrying fields of a GlobalRole. As a result, a non-administrative user could be granted, through a global role binding, permissions in downstream clusters that exceed the permissions that user already holds. This affected SUSE Rancher 2.15.2 only, and SUSE Rancher Webhook 0.11.0 up to 0.11.4, and 0.12.0 up to 0.12.1.

Assessment

CVSS: 7.2 (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:U/C:H/I:H/A:H

At the source

EUVD (ENISA)

References

https://github.com/rancher/webhook/security/advisories/GHSA-f898-2c8h-r7jc

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