netatalk: A logic error involving bitwise OR operations in Netatalk 3.1.4 through 4.4.2 allows a remote authenticated attacker...
CVE-2026-44055 is fixed in 17 products on 1 platform, first by a2boot 4.2.3~ds-2.1ubuntu0.1, released May 21, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| a2boot · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | a2boot 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| atalkd · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | atalkd 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| libatalk · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | libatalk 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| macipgw · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | macipgw 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| netatalk · Debian 13.5 (trixie) | 4.2.3~ds-1+deb13u2 | DEBIAN-CVE-2026-44055 | May 27, 2026 |
| netatalk · Debian 14 | 4.4.3~ds-1 | DEBIAN-CVE-2026-44055 | May 27, 2026 |
| netatalk · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | netatalk 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| netatalk-afptest · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-afptest-debuginfo · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-appletalk · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-appletalk-debuginfo · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-debuginfo · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-debugsource · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-devel · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-doc · Fedora 43 | 5:4.4.3-1.fc43 | FEDORA-2026-9FD50B2FF1 | May 22, 2026 |
| netatalk-tests · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | netatalk-tests 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| netatalk-tools · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | netatalk-tools 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| papd · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | papd 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
| timelord · Ubuntu 26.04.1 LTS (resolute) | 4.2.3~ds-2.1ubuntu0.1 | timelord 4.2.3~ds-2.1ubuntu0.1 | May 21, 2026 |
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