How severe is CVE-2026-57288?

CVE-2026-57288 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-57288 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-57288?

CVE-2026-57288 affects Jenkins Active Directory. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-57288?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-57288 have an EU (EUVD) identifier?

Yes. CVE-2026-57288 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38768.

When was CVE-2026-57288 published?

CVE-2026-57288 was published on 2026-06-24 and last updated on 2026-06-26.

CVE-2026-57288

CVE-2026-57288 is a low-severity vulnerability in Jenkins Active Directory with a CVSS 3.x base score of 3.7. 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-90.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38768
Weakness: CWE-90
Affected product: Jenkins Active Directory
Published: 2026-06-24
Last modified: 2026-06-26

Description

Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.

Frequently asked questions

What is CVE-2026-57288?: Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.
How severe is CVE-2026-57288?: CVE-2026-57288 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-57288 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-57288?: CVE-2026-57288 affects Jenkins Active Directory. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-57288?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-57288 have an EU (EUVD) identifier?: Yes. CVE-2026-57288 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38768.
When was CVE-2026-57288 published?: CVE-2026-57288 was published on 2026-06-24 and last updated on 2026-06-26.

References

https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3651

Affected products (1)

cpe:2.3:a:jenkins:active_directory:*:*:*:*:*:jenkins:*:*

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