Vulnerability · Published Jun 29, 2026 · Assigned by suse
CVE-2026-41052Rancher Privilege Escalation from Project Owner to Host
Critical 9.4
In plain English
A critical-severity security flaw in Rancher from SUSE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)9.4Critical
Exploit odds (30 days)0.4%top 63.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper privilege handling could be used by users with Project Owner role to escalate privileges, in Rancher versions 2.14 before 2.14.2, 2.13 before 2.13.6, and 2.12 before 2.12.10.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/rancher/rancher | 2.14.2 | GHSA-vx8h-4prv-g744 |
| Go | github.com/rancher/rancher | 2.13.6 | GHSA-vx8h-4prv-g744 |
| Go | github.com/rancher/rancher | 2.12.10 | GHSA-vx8h-4prv-g744 |
| Go | github.com/rancher/rancher | 0.0.0-20260513182521-2800aaac25b5 | GHSA-vx8h-4prv-g744 |
| Go | github.com/rancher/rancher | 0.0.0-20260513182521-2800aaac25b5 | GO-2026-5876 |
Affected products (as reported)
Weakness: CWE-305 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H