CVE-2026-41053GHSA-4J6X-2764-M8GHGO-2026-5869
Over-inclusive team membership expansion in GitHub App authentication provider for Rancher
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.14.2, 2.13.6, 0.0.0-20260519172014-d0c047bbc6d2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Incorrect authentication caching in the team member ship expansion of the Rancher Github authentication provider caused it granting principal access to any logged in user, in 2.13 before 2.13.6 and 2.14 before 2.14.2.
Timeline
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- CVE published
- Record last updated
Affected versions
- Rancher
From 2.14.0 · fixed in 2.14.2; From 2.13.0 · fixed in 2.13.6
- github.com/rancher/rancherGo
From 2.14.0 · fixed in 2.14.2
- github.com/rancher/rancherGo
From 2.13.0 · fixed in 2.13.6
- github.com/rancher/rancherGo
fixed in 0.0.0-20260519172014-d0c047bbc6d2