CVE-2026-44053 Details
Description
Netatalk 1.5.0 through 4.2.2 uses a broken cryptographic algorithm in the DHCAST128 UAM, which allows a remote attacker to obtain authentication credentials or impersonate a user via cryptanalytic attack.
A vulnerability exists in Netatalk versions 1.5.0 through 4.2.2, where the DHCAST128 authentication method employs weak cryptography. This vulnerability arises from the use of a 128-bit Diffie-Hellman prime, which is considered outdated and insecure. Exploitation requires a favorable network position, legacy negotiation conditions, and specialized effort. It is recommended to disable this User Authentication Method (UAM) and opt for stronger alternatives.
Users can upgrade to Netatalk version 4.5.0 or later, which includes the necessary patch. Alternatively, version 4.4.2 can be patched with the CVE-2026-44053.patch. The Netatalk team advises against proactively applying the patch to existing deployments due to the low practical exploitability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 21, 2026CISA-ADP
Assessed May 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://netatalk.io/security/CVE-2026-44053 | securin | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-327 | Use of a Broken or Risky Cryptographic Algorithm | securin |
Affected Products
| Product | Versions |
|---|---|
| Netatalk | >= 1.5.0, <= 4.2.2 (semver) |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | securin |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 21, 2026 | CVE Modified | securin |
| May 21, 2026 | New CVE Received | securin |