CVE Intelligence
Medium Input validation

CVE-2024-31867 — Apache Zeppelin: LDAP search filter query Injection Vulnerability

Improper Input Validation vulnerability in Apache Zeppelin. The attackers can execute malicious queries by setting improper configuration properties to LDAP search filter. This issue affects Apache Zeppelin: from 0.8.2 before 0.11.1. Users are recommended to upgrade to version 0.11.1, which fixes the issue.

Published Apr 9, 2024 · Updated Oct 23, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: apache

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 1.2% (30-day exploitation probability)+10
  • Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
1.18%
ahead of 68% of scored CVEs · Oct 30, 2026
Affects
Apache Software Foundation
Zeppelin and 1 more
CVSS base
6.5
Medium · 3 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script the kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

  • Documented patch — github.com (NIST National Vulnerability Database)
  • Maven Org.apache.zeppelin:zeppelin-server: fixed in version 0.11.1 — github.com (GitHub Security Advisories)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Apache Software Foundation Zeppelin, Maven Org.apache.zeppelin:zeppelin-server).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. Apply the fixed version or the patch documented under Remediation.
  4. Search available logs for exploit probes matching the vulnerability class (input validation), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Apache Software Foundation Zeppelin ≥ 0.8.2 and < 0.11.1 Vulnerable NIST National Vulnerability Database
Apache Software Foundation Zeppelin ≥ 0.8.2 and < 0.11.1 Vulnerable CVE Program (cve.org) e CISA ADP
Maven Org.apache.zeppelin:zeppelin-server ≥ 0.8.2 and < 0.11.1 Vulnerable GitHub Security Advisories

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
6.5 CVSS 3.1 Medium 3.9 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database
6.5 CVSS 3.1 Medium — — CISA-ADP via CVE Program (cve.org) e CISA ADP
5.9 CVSS 3.1 Medium — — GitHub, Inc. via GitHub Security Advisories
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N (score shown at the top: 134c704f-9b21-4f2e-91b3-4a467353bcc0)
Sources assign different scores within the same severity band. For prioritization we use 6.5 (CISA ADP via NIST National Vulnerability Database) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-20 · Improper Input Validation

Other CVEs with this weakness →

EPSS over time FIRST

Oct 23, 2026 → Oct 30, 2026 · 8 reading(s) · max 1.18%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

  • 2026
  • Fix documented
    Oct 23, 2026 · GitHub Security Advisories
  • Affected products added · maven/org.apache.zeppelin:zeppelin-server
    Oct 23, 2026 · GitHub Security Advisories
  • Affected products added · apache software foundation/apache zeppelin
    Oct 23, 2026 · CVE Program (cve.org) e CISA ADP
  • SSVC assessment updated
    Oct 23, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 23, 2026
  • Fix documented
    Oct 23, 2026 · NIST National Vulnerability Database
  • Affected products added · apache/zeppelin
    Oct 23, 2026 · NIST National Vulnerability Database
  • CVSS changed · 6.5
    Oct 23, 2026 · NIST National Vulnerability Database
  • Source status changed · → Analyzed
    Oct 23, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 23, 2026 · Alertas do Telegram
  • 2024
  • CVE published
    Apr 9, 2024 · apache

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 23, 2026 – Oct 23, 2026
  • 1× Official description updated · Oct 23, 2026 – Oct 23, 2026

References

6 on the record

Elsewhere on this site

Apache Software Foundation
every CVE for this vendor
Input validation
same class
CWE-20
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-44615 Path traversal in NotebookRepo note and folder path composition Jul 31, 2026
  • CVE-2026-44613 Apache Zeppelin: Cross-site request forgery in REST and WebSocket request handling Jul 30, 2026
  • CVE-2026-44616 Apache Zeppelin: LDAP injection in ActiveDirectoryGroupRealm filter construction Jul 30, 2026
  • CVE-2026-44617 Apache Zeppelin: LDAP filter injection in LdapRealm — incomplete fix of CVE-2024-31867 Jul 30, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2024-31867 is "Apache Zeppelin: LDAP search filter query Injection Vulnerability", rated Medium. It affects Zeppelin (Apache Software Foundation); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.5 describes technical severity. EPSS 1.18% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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