CVE-2026-44058
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn authentication bypass vulnerability in Netatalk 2.2.2 through 4.4.2 allows a remote privileged user to authenticate as an arbitrary user via the admin auth user mechanism.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceNetatalk versions 2.2.2 through 4.4.2 contain an authentication bypass vulnerability in the admin auth user mechanism that allows a remote privileged attacker to authenticate as any arbitrary user on the system.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if Netatalk is installedRun 'dpkg -l netatalk' on Debian/Ubuntu, 'rpm -q netatalk' on RHEL/CentOS, or 'netatalk -V' to see version informationAffected if Netatalk is not installed or not found on the system
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Determine the installed Netatalk versionRun 'netatalk -V' or check the package version via your system's package managerAffected if Version is 2.2.2 through 4.4.2 (inclusive)
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Locate the Netatalk configuration fileCommon paths are /etc/netatalk/netatalk.conf, /etc/atalk/netatalk.conf, or /etc/atalk/afp.conf. Check your system for the configuration file locationAffected if Configuration file exists and contains admin auth user settings
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Verify if admin auth user mechanism is configuredSearch the Netatalk configuration for 'admin auth user' or 'auth required' directives using 'grep -r "admin" /etc/netatalk/' or 'grep -r "auth" /etc/atalk/'Affected if The 'admin auth user' option is present and set to any value, enabling the vulnerable authentication mechanism
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Check if Netatalk service is listening on networkRun 'netstat -tlnp | grep afp' or 'ss -tlnp | grep 548' to see if the AFP service (port 548) is bound to a network interface rather than localhost onlyAffected if Netatalk is listening on a non-localhost IP address, making it remotely accessible
The system is affected if Netatalk version is between 2.2.2 and 4.4.2 AND the admin auth user mechanism is configured in the Netatalk configuration file, regardless of network exposure.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Netatalk to the latest patched version (4.4.3 or later). If immediate patching is not possible, restrict network access to the AFP service using firewall rules or network segmentation.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-44058 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-44058 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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