CVE-2026-44053 Netatalk CVE debrief

Who should care

Administrators and security teams running Netatalk, especially environments that still support or expose DHCAST128-based authentication. Systems that provide AFP access to untrusted or broad network segments should treat this as an authentication-compromise risk.

Technical summary

The weakness is recorded with CWE-327 (Use of a Broken or Risky Cryptographic Algorithm). NVD’s vector is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N, indicating a remotely reachable issue with no privileges or user interaction required, but with higher attack complexity. The impact is confidentiality and integrity loss: an attacker may recover credentials or impersonate a legitimate user. The supplied corpus does not include a fixed-version announcement, so remediation details should be confirmed in the vendor advisory linked from NVD.

Defensive priority

High. This is an authentication-path weakness that can lead to account compromise or impersonation, so exposure of Netatalk services should be reviewed promptly even though the attack complexity is rated high.

Recommended defensive actions

• Identify whether Netatalk 1.5.0 through 4.2.2 is deployed anywhere in your environment.
• Review whether DHCAST128 UAM is enabled or reachable, and disable it if operationally possible.
• Restrict AFP/Netatalk access to trusted networks and hosts until remediation is confirmed.
• Apply the vendor’s corrective guidance or upgrade to a fixed release once validated from the official Netatalk security advisory.
• Treat exposed credentials or impersonated accounts as potential compromise candidates and consider password resets or credential rotation for affected users.
• Monitor authentication logs for unusual login patterns, failed handshakes, or unexpected account use tied to Netatalk access.
• Prefer stronger, modern authentication mechanisms where available and phase out legacy cryptographic authentication methods.

Evidence notes

All factual claims are limited to the supplied CVE/NVD corpus: affected product Netatalk, impacted versions 1.5.0 through 4.2.2, broken cryptographic algorithm in DHCAST128 UAM, remote credential disclosure/impersonation impact, CWE-327, and CVSS 7.4 with vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N. NVD lists a reference to the Netatalk security advisory URL, but no advisory body text was provided in the corpus, so no fixed-version claim is made here.

Official resources