Vulnerability · Published May 21, 2026 · Assigned by securin
CVE-2026-44055Bitwise OR logic bug enables shell injection
High 7.5
In plain English
A high-severity OS command injection in Netatalk from Netatalk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 70.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | netatalk | 4.4.3-r0 | ALPINE-CVE-2026-44055 |
| Debian:13 | netatalk | 4.2.3~ds-1+deb13u2 | DEBIAN-CVE-2026-44055 |
| Debian:14 | netatalk | 4.4.3~ds-1 | DEBIAN-CVE-2026-44055 |
| Ubuntu:25.10 | netatalk | no fix listed | UBUNTU-CVE-2026-44055 |
| Ubuntu:26.04:LTS | netatalk | 4.2.3~ds-2.1ubuntu0.1 | USN-8395-1 |
| Ubuntu:26.04:LTS | netatalk | 4.2.3~ds-2.1ubuntu0.1 | UBUNTU-CVE-2026-44055 |
Affected products (as reported)
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- Netatalk Security Advisory CVE-2026-44055 vendor-advisory