What is CVE-2026-48917?

CVE-2026-48917 is a medium-severity vulnerability in Jenkins Ldap, classified under Deserialization of Untrusted Data. CVSS score: 6.6/10. Published 2026-05-27.

How severe is CVE-2026-48917?

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

Deserialization in Jenkins Ldap

CVE-2026-48917

Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation.

Vulnerability class: Insecure Deserialization

Published 2026-05-27 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.004 (35.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002

Affected products

Jenkins Ldap — versions 807.v7d7de30930cf
Jenkins Project Ldap Plugin — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.jenkins.io/security/advisory/2026-05-27/ (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48917?: CVE-2026-48917 is a medium-severity vulnerability in Jenkins Ldap, classified under Deserialization of Untrusted Data. CVSS score: 6.6/10. Published 2026-05-27.
How severe is CVE-2026-48917?: Medium severity. CVSS v3 base score is 6.6 out of 10.