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Fencer Intel
medium 5.0

CVE-2026-41051 json

csync2 uses insecure temporary directories when compiled with C99 or later

published 5mo ago modified 14d ago also EUVD-2026-29920

cvss
5.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

Summary

csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.

Patch / fix

  • SUSE openSUSE Tumbleweed 2.0+git.1600444747.83b3644-3.1
  • csync2 Debian 14 2.0-42-g83b3644-6

debian advisories DEBIAN-CVE-2026-41051

  • csync2 SLE High Availability Extension 16.0, SLES for SAP applications 16.0 2.0+git.1600444747.83b3644-160000.3.1

suse advisories SUSE-SU-2026:21994-1SUSE-SU-2026:22041-1

  • csync2 openSUSE Tumbleweed 2.0+git.1600444747.83b3644-3.1

opensuse advisories openSUSE-SU-2026:10600-1

Is CVE-2026-41051 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5mo ago

Exploit prediction

0.08% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 5.1 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 3.1 5.0 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CNA 4.0 5.1 CVSS:4.0/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

Affected products

  • SUSE openSUSE Tumbleweed

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.