CVE-2026-57295
CVE-2026-57295 is a medium-severity vulnerability in Jenkins Ec2 Fleet with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38776
- Weakness: CWE-352
- Affected product: Jenkins Ec2 Fleet
- Published:
- Last modified:
Description
A cross-site request forgery (CSRF) vulnerability in Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing AWS credentials stored in Jenkins.
Frequently asked questions
- What is CVE-2026-57295?
- A cross-site request forgery (CSRF) vulnerability in Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing AWS credentials stored in Jenkins.
- How severe is CVE-2026-57295?
- CVE-2026-57295 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-57295 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-57295?
- CVE-2026-57295 affects Jenkins Ec2 Fleet. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-57295?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-57295 have an EU (EUVD) identifier?
- Yes. CVE-2026-57295 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38776.
- When was CVE-2026-57295 published?
- CVE-2026-57295 was published on 2026-06-24 and last updated on 2026-06-26.
References
Affected products (1)
- cpe:2.3:a:jenkins:ec2_fleet:*:*:*:*:*:jenkins:*:*
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