CVE-2026-44055

Publication date 21 May 2026

Last updated 9 June 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A logic error involving bitwise OR operations in Netatalk 3.1.4 through 4.4.2 allows a remote authenticated attacker to inject OS commands and execute arbitrary code.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
netatalk	26.04 LTS resolute	Fixed 4.2.3~ds-2.1ubuntu0.1
	25.10 questing	Vulnerable
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	14.04 LTS trusty	Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
netatalk	Upstream: https://netatalk.io/security/CVE-2026-44055.patch

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-8395-1
Netatalk vulnerabilities
8 June 2026