CVE-2026-44617

Apache Zeppelin: LDAP filter injection in LdapRealm — incomplete fix of CVE-2024-31867

MEDIUM
6.5
CVSS Score
Published: July 30, 2026 at 03:22 PM UTC
Updated: October 23, 2026 at 10:10 PM UTC
1 product affected across 1 vendorZeppelin

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

LDAP filter injection vulnerability in Apache Zeppelin. LdapRealm used RFC 4514 distinguished-name escaping when constructing LDAP search filters instead of RFC 4515 filter escaping, leaving special filter characters insufficiently escaped.                   This is an incomplete fix of CVE-2024-31867. This issue affects Apache Zeppelin versions 0.11.1, 0.11.2, and 0.12.0. Users are recommended to upgrade to version 0.12.1, which fixes this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.11.1 ≤ v < 0.12.10.11.1
Affected range stops below 0.12.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

PatchIssue Tracking
Source: cverecord
https://github.com/apache/zeppelin/pull/5226
Mailing ListThird Party Advisory
Source: cverecord
https://www.cve.org/CVERecord?id=CVE-2024-31867
Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/s65t6n3s1v4j5b1w7zvv5w73ko69m1zv

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-90

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