CVE-2026-41053 Vulnerability Analysis & Exploit Details

CVE-2026-41053
Vulnerability Scoring

8.8

/10

Severe Risk

Cybersecurity professionals consider CVE-2026-41053 an immediate threat requiring urgent mitigation.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or special conditions.
Attack Vector: Network
Vulnerability is exploitable over a network without physical access.
Privileges Required: Low
Some privileges are necessary to exploit the vulnerability.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2026-41053 Details

Status: Analyzed

Last updated: 🕢 02 Jul 2026, 19:57 UTC
Originally published on: 🕛 30 Jun 2026, 12:16 UTC

Time between publication and last update: 2 days

CVSS Release: version 3

CVSS3 Source

meissner@suse.de

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-41053 Vulnerability Summary

CVE-2026-41053: 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.

Assessing the Risk of CVE-2026-41053

Access Complexity Graph

The exploitability of CVE-2026-41053 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-41053

CVE-2026-41053 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-41053, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-41053, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: High
Exploiting CVE-2026-41053 can result in unauthorized access to sensitive data, severely compromising data privacy.
Integrity: High
CVE-2026-41053 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
Availability: High
CVE-2026-41053 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-41053 References

External References

https://github.com/rancher/rancher/security/advisories/GHSA-4j6x-2764-m8gh

CWE Common Weakness Enumeration

CWE-303

CAPEC Common Attack Pattern Enumeration and Classification

Reflection Attack in Authentication Protocol CAPEC-90 An adversary can abuse an authentication protocol susceptible to reflection attack in order to defeat it. Doing so allows the adversary illegitimate access to the target system, without possessing the requisite credentials. Reflection attacks are of great concern to authentication protocols that rely on a challenge-handshake or similar mechanism. An adversary can impersonate a legitimate user and can gain illegitimate access to the system by successfully mounting a reflection attack during authentication.

Vulnerable Configurations

cpe:2.3:a:suse:rancher:2.13.0:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:rc4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha8:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.0:alpha8:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.1:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.2:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:rc3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:rc3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.3:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.4:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.13.5:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha10:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha10:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha11:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha11:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha12:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha12:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha13:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha13:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha8:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha8:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha9:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.0:alpha9:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:-:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:rc1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:rc2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha1:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha10:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha10:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha11:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha11:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha12:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha12:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha13:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha13:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha14:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha14:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha2:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha3:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha4:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha5:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha6:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha7:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha8:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha8:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha9:*:*:*:*:*:*
cpe:2.3:a:suse:rancher:2.14.1:alpha9:*:*:*:*:*:*

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