SUSE Rancher up to 2.13.5/2.14.1 incorrect implementation of authentication algorithm

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k1.37-

Summaryinfo

A vulnerability classified as very critical was found in SUSE Rancher up to 2.13.5/2.14.1. Impacted is an unknown function. The manipulation results in incorrect implementation of authentication algorithm. This vulnerability was named CVE-2026-41053. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, was found in SUSE Rancher up to 2.13.5/2.14.1. Affected is an unknown function. The manipulation with an unknown input leads to a incorrect implementation of authentication algorithm vulnerability. CWE is classifying the issue as CWE-303. The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-41053 since 04/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/30/2026).

Upgrading to version 2.13.6 or 2.14.2 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (suse): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incorrect implementation of authentication algorithm
CWE: CWE-303
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Rancher 2.13.6/2.14.2

Timelineinfo

04/16/2026 CVE reserved
06/30/2026 +75 days Advisory disclosed
06/30/2026 +0 days VulDB entry created
06/30/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: suse.com

Advisory: GHSA-4j6x-2764-m8gh
Status: Confirmed

CVE: CVE-2026-41053 (🔒)
GCVE (CVE): GCVE-0-2026-41053
GCVE (VulDB): GCVE-100-374808

Entryinfo

Created: 06/30/2026 14:48
Changes: 06/30/2026 14:48 (63)
Complete: 🔍
Cache ID: 216::103

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