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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-41053

39
FAUCET Score

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.

First published: Jun 30, 2026Last modified: Jun 30, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.13.0, < 2.13.6CPE matchmatch criteria
cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
>= 2.14.0, < 2.14.2CPE matchmatch criteria
cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
37.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 25th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/rancher/rancherFixed in: 2.14.2
gopatch availablevia ghsa
Product: github.com/rancher/rancherFixed in: 2.13.6
gopatch availablevia ghsa
Product: github.com/rancher/rancherFixed in: 0.0.0-20260519172014-d0c047bbc6d2

Vendor Advisories (1)

goGHSA-4j6x-2764-m8ghhigh

Rancher has over-inclusive team membership expansion in GitHub App authentication provider

Jul 1, 2026

References

github.com / rancher/rancher/security/advisories/GHSA-4j6x-2764-m8gh
PatchVendor AdvisoryMitigation