PT-2026-34680 · Debian+3 · Csync2+1

Wolfgang Frisch · Published 2026-04-22 · Updated 2026-05-13 · CVE-2026-41051

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions csync2 versions prior to 2.0+git.1600444747.83b3644-3.1

Description When compiled with C99 or later, the software uses insecure temporary directories. This allows for Time-of-Check to Time-of-Use (TOCTOU) attacks, a race condition where a system checks a condition (such as the existence of a file) and then uses the result of that check, but the condition changes between the check and the use.

Recommendations Update to version 2.0+git.1600444747.83b3644-3.1.

Fix

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2026-41051

OPENSUSE-SU-2026:10600-1

Affected Products

Csync2

Opensuse Tumbleweed

References · 11

• https://osv.dev/vulnerability/openSUSE-SU-2026:10600-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-41051 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41051 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-41051 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-41051 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-41051 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-41051 · Security Note
• https://bugzilla.suse.com/show_bug.cgi?id=1262472 · Note
• https://t.me/CVEtracker/53640 · Telegram Post
• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41051 · Note
• https://suse.com/security/cve/CVE-2026-41051 · Note