CVE-2026-44054
Deferred Deferred - Pending Action

Predictable Session Token in Netatalk

Publication date: 2026-05-21

Last updated on: 2026-05-21

Assigner: securin

Description
Netatalk 2.0.0 through 4.4.2 generates AFP session tokens derived from predictable process IDs, which allows a remote authenticated attacker to cause a denial of service by exploiting the reconnect mechanism.

CVSS Scores

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Meta Information

Published
2026-05-21
Last Modified
2026-05-21
Generated
2026-06-30
AI Q&A
2026-05-21
EPSS Evaluated
2026-06-29
NVD
CVE-2026-44054
EUVD
EUVD-2026-31231

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
netatalk netatalk to 4.4.2 (inc)
netatalk netatalk 4.4.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-330 The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in Netatalk versions 2.0.0 through 4.4.2 and involves a predictable afpd session token. This means that the token used to manage sessions in the Apple Filing Protocol daemon (afpd) can be guessed or predicted by an attacker. The issue was fixed in version 4.4.3.

Impact Analysis

Because the afpd session token is predictable, an attacker could potentially hijack or interfere with active sessions. According to the CVSS score (6.5) and vector, the vulnerability can be exploited remotely with low complexity and requires low privileges, but it does not impact confidentiality or integrity. However, it can cause a high impact on availability, meaning it could disrupt service or cause denial of service.

Mitigation Strategies

The vulnerability in Netatalk versions 2.0.0 through 4.4.2 is fixed in version 4.4.3. Immediate mitigation should include upgrading Netatalk to version 4.4.3 or later.

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