CVE-2026-41053

Over-inclusive team membership expansion in GitHub App authentication provider for Rancher

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.

Affected

SUSE · Rancher

CVSS v3.1 SUSE

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.52% chance of exploitation in the next 30 days, 43rd percentile

Published

2026-06-30

Updated

2026-07-01

Proof-of-concept exploits (1)

• advisories/GHSA-4j6x-2764-m8gh

Security advisories

• rancher/rancher/security/advisories/GHSA-4j6x-2764-m8gh

References

• CVE Record
• NVD entry