CVE-2026-88804 SUSE Rancher - Stored XSS

SUSE Rancher < 2.15.2, 2.14 < 2.14.6, 2.13 < 2.13.10, 2.12 < 2.12.14, and 2.11 < 2.11.18 contain a stored cross-site scripting caused by unauthenticated update of public UI settings, letting remote attackers execute scripts in Rancher UI, exploit requires no authentication.

CVSS base score 9.6 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.60% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
28 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to versions 2.15.2, 2.14.6, 2.13.10, 2.12.14, 2.11.18 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs