A missing permission check in Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing AWS credentials stored in Jenkins.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Jenkins Project Jenkins EC2 Fleet Plugin unaffected
Version Status Constraints
0 affected ≤ 4.2.3.539.v8fedff2a_81c3

No data.

No data.

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3774 cve-icon
History

Wed, 24 Jun 2026 16:00:00 +0000

Type Values Removed Values Added
Title Missing Permission Check in Jenkins EC2 Fleet Plugin Enables Credential Theft Missing Permission Check Enables Credential Theft via Jenkins EC2 Fleet Plugin

Wed, 24 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-862
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 24 Jun 2026 15:00:00 +0000

Type Values Removed Values Added
Title Missing Permission Check in Jenkins EC2 Fleet Plugin Enables Credential Theft
Weaknesses CWE-284
CWE-639

Wed, 24 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
Description A missing permission check in Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing AWS credentials stored in Jenkins.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-06-24T14:46:33.242Z

Reserved: 2026-06-24T08:41:44.358Z

Link: CVE-2026-57294

cve-icon Vulnrichment

Updated: 2026-06-24T14:46:26.341Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T15:45:06Z

Weaknesses