Vulnerability · Published May 13, 2026 · Assigned by suse
CVE-2026-41051csync2 uses insecure temporary directories when compiled with C99 or later
Medium 5.0
In plain English
A medium-severity security flaw in openSUSE Tumbleweed from SUSE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)<0.1%top 99.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | csync2 | no fix listed | DEBIAN-CVE-2026-41051 |
| Debian:13 | csync2 | no fix listed | DEBIAN-CVE-2026-41051 |
| Debian:14 | csync2 | 2.0-42-g83b3644-6 | DEBIAN-CVE-2026-41051 |
| Ubuntu:22.04:LTS | csync2 | no fix listed | UBUNTU-CVE-2026-41051 |
| Ubuntu:24.04:LTS | csync2 | no fix listed | UBUNTU-CVE-2026-41051 |
| Ubuntu:25.10 | csync2 | no fix listed | UBUNTU-CVE-2026-41051 |
| Ubuntu:26.04:LTS | csync2 | no fix listed | UBUNTU-CVE-2026-41051 |
| Ubuntu:26.10 | csync2 | no fix listed | UBUNTU-CVE-2026-41051 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SUSE | openSUSE Tumbleweed | ? – before 2.0+git.1600444747.83b3644-3.1 |
Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H