CVE-2026-48917: Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation.

Q: How do I fix CVE-2026-48917?

ldap: upgrade to newer than 793.v754d6b_41b_ea_4. Exact commands for each OS are on this page.

Q: Is CVE-2026-48917 being exploited?

CVE-2026-48917 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-48917 affect?

CVE-2026-48917 affects ldap. Severity is medium (CVSS 6.6). Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation.

Q: How urgent is CVE-2026-48917?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 6.6UPGRADE

CVE-2026-48917 is a medium-severity flaw (CVSS 6.6) affecting ldap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.6 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-502
Published	2026-05-27
Last modified	2026-10-26

Publisher (CNA): Jenkins Project · Vendor: jenkins

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 15:16 UTCPublished CVE record published
2026-10-26 12:10 UTCUpdated Record last modified

jenkins ldap UPGRADE

Affected: <= 793.v754d6b_41b_ea_4 · 807.v7d7de30930cf

Fixed in: newer than 793.v754d6b_41b_ea_4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ldap || rpm -q ldap || ldap --version

2. UPGRADE to newer than 793.v754d6b_41b_ea_4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ldap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ldap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-48917?

ldap: upgrade to newer than 793.v754d6b_41b_ea_4. Exact commands for each OS are on this page.

Is CVE-2026-48917 being exploited?

CVE-2026-48917 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-48917 affect?

CVE-2026-48917 affects ldap. Severity is medium (CVSS 6.6). Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation.

How urgent is CVE-2026-48917?

Priority 27/100. No elevated risk signals yet.

Software pages

Jenkins vulnerabilities

Related CVEs

CVE-2026-48916 MEDIUM 6.6 UPGRADE Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals.

References

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