CVE-2026-88804: CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') in SUSE Rancher
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.
AI Analysis
Technical Summary
This vulnerability (CWE-79) in SUSE Rancher allows unauthenticated remote attackers to perform a stored cross-site scripting attack by updating public UI settings. The flaw exists in Rancher versions 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. Exploitation could lead to execution of arbitrary scripts in the context of the Rancher UI, impacting confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the Rancher UI without authentication, potentially leading to full compromise of the UI session, data theft, or manipulation of Rancher management functions. The CVSS score of 9.6 reflects critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Fixed versions are available for all affected branches: upgrade to Rancher 2.15.2 or later, 2.14.6 or later, 2.13.10 or later, 2.12.14 or later, and 2.11.18 or later. Applying these official fixes will remediate the vulnerability.
CVE-2026-88804: CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') in SUSE Rancher
Description
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.
CVSS v3.1
Score 9.6critical
Affected software
SUSE
Rancher
pkg:github/RancherRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) in SUSE Rancher allows unauthenticated remote attackers to perform a stored cross-site scripting attack by updating public UI settings. The flaw exists in Rancher versions 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. Exploitation could lead to execution of arbitrary scripts in the context of the Rancher UI, impacting confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the Rancher UI without authentication, potentially leading to full compromise of the UI session, data theft, or manipulation of Rancher management functions. The CVSS score of 9.6 reflects critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Fixed versions are available for all affected branches: upgrade to Rancher 2.15.2 or later, 2.14.6 or later, 2.13.10 or later, 2.12.14 or later, and 2.11.18 or later. Applying these official fixes will remediate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- suse
- Date Reserved
- 2026-09-10T08:35:07.010Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aba8fcff7a7c54106e608c5
Added to database: 09/28/2026, 16:03:27 UTC
Last enriched: 09/28/2026, 16:17:49 UTC
Last updated: 09/29/2026, 01:57:22 UTC
Views: 14
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