CVE-2026-41053

HIGH 8.8EPSS 0.5%

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.

CVSS v3.1: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1: 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, 42th percentile
Published: 2026-06-30
Updated: 2026-07-01

Proof-of-concept exploits (1)

advisories/GHSA-4j6x-2764-m8gh

References

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