Limited read and write via privilege-toggle race
Published May 21, 2026 · Updated May 21, 2026
Race condition in Netatalk 2.2.5 through 4.4.2 allows local users to read or modify limited data or briefly disrupt service. The privilege-switching helpers store identity state globally without locking or nesting support, so concurrent or nested calls can restore the wrong effective credentials. Exploitation requires low-privileged local access and a high-complexity race; upstream found no credible remote path or privilege-escalation route in normal afpd handling.
Summary
What happened
Race condition in Netatalk 2.2.5 through 4.4.2 allows local users to read or modify limited data or briefly disrupt service. The privilege-switching helpers store identity state globally without locking or nesting support, so concurrent or nested calls can restore the wrong effective credentials. Exploitation requires low-privileged local access and a high-complexity race; upstream found no credible remote path or privilege-escalation route in normal afpd handling.
The record
- CVE
- CVE-2026-44059
- Published
- May 21, 2026
- Updated
- May 21, 2026
- Vendor
- Netatalk
- Product
- Netatalk
- Classifications
- CWE-362
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 21, 2026CVE publishedPublication date reported by the CVE source.
- May 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.2.5 <=4.4.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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