Linux · Security advisory · January 21, 2026

DSA-6105-1: modsecurity-crs security update

DSA-6105-1, released January 21, 2026, fixes 1 CVE in modsecurity-crs. None of them is reported as exploited. Patch Radar priority: Routine.

Routine
CVEs closed
1
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.1775
97th percentile

Fixed package versions

ProductReleaseFixed in
modsecurity-crsDebian 12.15 (bookworm)3.3.4-1+deb12u1
modsecurity-crsDebian 13.5 (trixie)3.3.7-1+deb13u1

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
Routine CVE-2026-21876 modsecurity-crs: modsecurity-crs - security update 5.3 0.1775 None reported
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