CVE-2026-44063Network attack vector

Authenticated LDAP query manipulation via unescaped names

Published May 21, 2026 · Updated May 21, 2026

LDAP injection in Netatalk 2.1.0 through 4.4.2 allows remote authenticated users to read limited data or modify LDAP entries. The libatalk ACL code interpolates client-influenced name values into LDAP search filters without escaping LDAP metacharacters. Exploitation requires LDAP-backed ACL or identity mapping and valid low-privilege access; the resulting query confusion has limited confidentiality and integrity impact.

CVSS severity4.2
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

LDAP injection in Netatalk 2.1.0 through 4.4.2 allows remote authenticated users to read limited data or modify LDAP entries. The libatalk ACL code interpolates client-influenced name values into LDAP search filters without escaping LDAP metacharacters. Exploitation requires LDAP-backed ACL or identity mapping and valid low-privilege access; the resulting query confusion has limited confidentiality and integrity impact.

The record

CVE
CVE-2026-44063
Published
May 21, 2026
Updated
May 21, 2026
Vendor
Netatalk
Product
Netatalk
Classifications
CWE-90, CAPEC-136
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 21, 2026CVE publishedPublication date reported by the CVE source.
  2. May 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.1.0 <=4.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Netatalk · Netatalkversion=2.1.0 <=4.4.2

Published CVSS scores

4.2securinCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-90Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
CAPEC-136LDAP Injection

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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