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CVE-2026-2903

LOW

3.3

Description

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.

CVE Details

CVSS v3.1 Score3.3

SeverityLOW

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/22/2026

Last Modified2/23/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-404CWE-476

References

https://github.com/oneafter/0202/blob/main/re/repro(cna@vuldb.com)

https://github.com/skvadrik/re2c/(cna@vuldb.com)

https://github.com/skvadrik/re2c/commit/febeb977936f9519a25d9fbd10ff8256358cdb97(cna@vuldb.com)

https://github.com/skvadrik/re2c/issues/571(cna@vuldb.com)

https://github.com/skvadrik/re2c/issues/571#issuecomment-3837675101(cna@vuldb.com)

https://vuldb.com/?ctiid.347210(cna@vuldb.com)

https://vuldb.com/?id.347210(cna@vuldb.com)

https://vuldb.com/?submit.755030(cna@vuldb.com)

IOC Correlations

No correlations recorded

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