CVE-2026-2903

re2c: A flaw has been found in skvadrik re2c up to 4.4

CVE-2026-2903 is fixed in re2c on 1 platform by DEBIAN-CVE-2026-2903 (version 4.5.1-1), released February 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.

Where it's fixed

ProductFixed inFixReleased
Linux
re2c · Debian 14 4.5.1-1 DEBIAN-CVE-2026-2903 Feb 22, 2026

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