CVE-2026-88804: Suse Rancher

Critical severity, CVSS 9.6. EPSS: 0.5% chance of exploitation in the next 30 days.

An unauthenticated update of public UI settings could be used by remote attackers to execute a stored cross-site scripting attack in the Rancher UI, in SUSE Rancher 2.15 before 2.15.2, 2.14 before 2.14.6, 2.13 before 2.13.10, 2.12 before 2.12.14 and 2.11 before 2.11.18.

Affected products

• Suse Rancher: from 2.15.0, before 2.15.2 (fixed in 2.15.2); from 2.14.0, before 2.14.6 (fixed in 2.14.6); from 2.13.0, before 2.13.10 (fixed in 2.13.10); from 2.12.0, before 2.12.14 (fixed in 2.12.14); from 2.11.0se, before 2.11.18 (fixed in 2.11.18)

Published 2026-09-28. Last modified 2026-09-29.