Description
Incomplete sanitization of extended attribute (EA) path components in Netatalk 2.1.0 through 4.4.2 allows a remote authenticated attacker to write to files outside the intended metadata namespace via crafted EA names.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Netatalk | Netatalk | 2.1.0 – ≤ 4.4.2 | 4.4.3 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | netatalk | 4.4.3~ds-1 | — |
| Debian 13 | netatalk | 4.2.3~ds-1+deb13u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | netatalk | 4.2.3~ds-2.1ubuntu0.2 | USN-8455-1 |
| Ubuntu 25.10 | netatalk | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | netatalk | 3.1.18~ds-1ubuntu0.1~esm3 | USN-8455-1 |
| Ubuntu Pro 22.04 LTS | netatalk | 3.1.12~ds-9ubuntu0.22.04.4+esm2 | USN-8455-1 |
| Ubuntu Pro 20.04 LTS | netatalk | 3.1.12~ds-4ubuntu0.20.04.4+esm2 | USN-8455-1 |
| Ubuntu Pro 18.04 LTS | netatalk | 2.2.6-1ubuntu0.18.04.2+esm4 | USN-8455-1 |
| Ubuntu Pro 16.04 LTS | netatalk | 2.2.5-1ubuntu0.2+esm4 | USN-8455-1 |
| Ubuntu Pro 14.04 LTS | netatalk | 2.2.2-1ubuntu2.2+esm4 | USN-8455-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | netatalk | 4.4.3-r0 | — |
Advisories 1
- USN-8455-1 netatalk vulnerabilities Ubuntu Security Notices (USN) · Jun 22, 2026
References
- Netatalk Security Advisory CVE-2026-44068 vendor-advisory