CVE-2026-57294

Name: CVE-2026-57294
Creator: NVD / NIST
Published: 2026-06-24T14:17:35.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.14%

Last modified Jun 26, 2026

CVE-2026-57294 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.14%

4.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Jenkins	Ec2 Fleet	<= 4.2.3.539.v8fedff2a_81c3

References

https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3774Vendor Advisory

Timeline

Published: Jun 24, 2026
Last Modified: Jun 26, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-57294?

How severe is CVE-2026-57294?

CVE-2026-57294 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2026-57294?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-57294?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST