What is CVE-2026-48919?

CVE-2026-48919 is a medium-severity vulnerability in Jenkins Active_directory, classified under Deserialization of Untrusted Data. CVSS score: 6.6/10. Published 2026-05-27.

How severe is CVE-2026-48919?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Deserialization in Jenkins Active_directory

CVE-2026-48919

Jenkins Active Directory Plugin 2.41 and earlier deserializes data from LDAP referrals without validation.

Vulnerability class: Insecure Deserialization

EPSS: 0.013 (80.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jenkins Active_directory
Jenkins Project Active Directory Plugin — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

jenkinsci-cert@googlegroups.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48919?: CVE-2026-48919 is a medium-severity vulnerability in Jenkins Active_directory, classified under Deserialization of Untrusted Data. CVSS score: 6.6/10. Published 2026-05-27.
How severe is CVE-2026-48919?: Medium severity. CVSS v3 base score is 6.6 out of 10.