| Name | CVE-2026-7836 |
| Description | An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| netatalk (PTS) | bullseye | 3.1.12~ds-8+deb11u1 | vulnerable |
| bullseye (security) | 3.1.12~ds-8+deb11u2 | vulnerable |
| trixie | 4.2.3~ds-1+deb13u1 | vulnerable |
| trixie (security) | 4.2.3~ds-1+deb13u2 | vulnerable |
| forky | 4.4.3~ds-1 | vulnerable |
| sid | 4.5.0~ds-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| netatalk | source | (unstable) | 4.5.0~ds-1 | unimportant | | |
Notes
https://netatalk.io/security/CVE-2026-7836
No security impact per upstream assessment