CVE-2026-44069: Netatalk integer underflow in volxlate

CVE-2026-44069 · Severity: low · CVSS 3.9 · Published 2026-05-21

Netatalk is an open-source implementation of the Apple Filing Protocol (AFP) used to share files between Unix-like systems and macOS. A security flaw in how the software handles file path translations could lead to memory errors if a system administrator uses an unusually long or malformed configuration value. Because the vulnerability requires high-level administrative privileges to exploit, the practical risk to most organizations is low.

Technologies: Netatalk. Vendors: Netatalk.

Quick answers

Is CVE-2026-44069 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-44069 being exploited in the wild.
How severe is CVE-2026-44069?
Low severity, with a CVSS score of 3.9, published 21 May 2026.
Which products and versions are affected?
Netatalk 3.0.0 through 4.4.2.
Is there a fix for CVE-2026-44069?
A patch was published on 2026-05-21: Fixed in version 4.5.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-44069 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-44069?
Check whether you run Netatalk at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An integer underflow (CWE-191) exists in the volxlate component of Netatalk versions 3.0.0 through 4.4.2. The vulnerability occurs during path translation when the software subtracts the length of formatted output from the remaining destination buffer size without proper validation. An attacker with high-level administrative privileges (PR:H) could potentially trigger this underflow by providing specially crafted, long configuration values or volume paths. This could lead to a buffer overflow or memory corruption, though exploitability is considered low due to the requirement for local access and administrative control over configuration files. The issue is resolved in Netatalk version 4.5.0.

Affected products

  • Netatalk Netatalk 3.0.0 through 4.4.2

Timeline

  • 2026-05-13: disclosed: Initial disclosure date
  • 2026-05-21: advisory: NVD publication date
  • 2026-05-21: patched: Fixed in version 4.5.0

References

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