Vulnerability 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.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/oneafter/0202/blob/main/re/repro
- https://github.com/skvadrik/re2c/
- https://github.com/skvadrik/re2c/commit/febeb977936f9519a25d9fbd10ff8256358cdb97
- https://github.com/skvadrik/re2c/issues/571
- https://github.com/skvadrik/re2c/issues/571#issuecomment-3837675101
- https://vuldb.com/?ctiid.347210
- https://vuldb.com/?id.347210
- https://vuldb.com/?submit.755030
FAQ
What is CVE-2026-2903?
CVE-2026-2903 is a vulnerability with a CVSS score of 3.3 (LOW). 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...
How severe is CVE-2026-2903?
CVE-2026-2903 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2903?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.