How severe is CVE-2026-57280?

CVE-2026-57280 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-57280 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-57280?

CVE-2026-57280 affects Jenkins Script Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-57280?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-57280 have an EU (EUVD) identifier?

Yes. CVE-2026-57280 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38760.

When was CVE-2026-57280 published?

CVE-2026-57280 was published on 2026-06-24 and last updated on 2026-06-26.

CVE-2026-57280

CVE-2026-57280 is a high-severity vulnerability in Jenkins Script Security with a CVSS 3.x base score of 8.8. 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-693.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38760
Weakness: CWE-693
Affected product: Jenkins Script Security
Published: 2026-06-24
Last modified: 2026-06-26

Description

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not intercept the implicit type casts applied to the elements of typed for-each loops in sandboxed Groovy scripts, allowing attackers able to provide such scripts to invoke arbitrary constructors and bypass the sandbox protection.

Frequently asked questions

What is CVE-2026-57280?: Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not intercept the implicit type casts applied to the elements of typed for-each loops in sandboxed Groovy scripts, allowing attackers able to provide such scripts to invoke arbitrary constructors and bypass the sandbox protection.
How severe is CVE-2026-57280?: CVE-2026-57280 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-57280 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-57280?: CVE-2026-57280 affects Jenkins Script Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-57280?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-57280 have an EU (EUVD) identifier?: Yes. CVE-2026-57280 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38760.
When was CVE-2026-57280 published?: CVE-2026-57280 was published on 2026-06-24 and last updated on 2026-06-26.

References

https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3792

Affected products (1)

cpe:2.3:a:jenkins:script_security:*:*:*:*:*:jenkins:*:*

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