| Name | CVE-2026-41051 |
| Description | csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories. |
| 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 |
|---|
| csync2 (PTS) | bullseye | 2.0-25-gc0faaf9-1 | vulnerable |
| bookworm | 2.0-42-g83b3644-2 | vulnerable |
| trixie | 2.0-42-g83b3644-3 | vulnerable |
| forky, sid | 2.0-42-g83b3644-6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| csync2 | source | (unstable) | 2.0-42-g83b3644-6 | | | |
Notes
[trixie] - csync2 <no-dsa> (Minor issue)
[bookworm] - csync2 <no-dsa> (Minor issue)
[bullseye] - csync2 <postponed> (Minor issue, TOCTOU hard to exploit with glibc's mktemp)
https://bugzilla.suse.com/show_bug.cgi?id=1262472