What’s Vulnerable › Vulnerabilities

CVE-2026-11478: kokke tiny-regex-c Pattern re.c matchstar redos

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-08 · updated 2026-07-23
• Weakness: CWE-400

Description

A flaw has been found in kokke tiny-regex-c up to f2632c6d9ed25272987471cdb8b70395c2460bdb. This vulnerability affects the function matchstar of the file re.c of the component Pattern Handler. This manipulation causes inefficient regular expression complexity. The attack is restricted to local execution. The exploit has been published and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• kokke tiny-regex-c: f2632c6d9ed25272987471cdb8b70395c2460bdb

References

• https://github.com/kokke/tiny-regex-c/
• https://github.com/kokke/tiny-regex-c/issues/100
• https://github.com/user-attachments/files/28046213/tiny-regex-c-redos-poc.zip
• https://vuldb.com/cve/CVE-2026-11478
• https://vuldb.com/submit/833966
• https://vuldb.com/vuln/369098
• https://vuldb.com/vuln/369098/cti

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