kokke tiny-regex-c up to f2632c6d9ed25272987471cdb8b70395c2460bdb Pattern re.c matchstar redos

Summaryinfo

A vulnerability, which was classified as problematic, was found in kokke tiny-regex-c up to f2632c6d9ed25272987471cdb8b70395c2460bdb. This issue affects the function matchstar of the file re.c of the component Pattern Handler. Such manipulation leads to redos. This vulnerability is listed as CVE-2026-11478. The attack must be carried out locally. In addition, an exploit is available. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in kokke tiny-regex-c up to f2632c6d9ed25272987471cdb8b70395c2460bdb. It has been rated as problematic. Affected by this issue is the function matchstar of the file re.c of the component Pattern Handler. The manipulation with an unknown input leads to a redos vulnerability. Using CWE to declare the problem leads to CWE-1333. The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. Impacted is availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-11478. The exploitation is known to be easy. Local access is required to approach this attack. Technical details as well as a public exploit are known. This vulnerability is assigned to T1449.003 by the MITRE ATT&CK project.

The exploit is available at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• kokke

Name

• tiny-regex-c

Version

• f2632c6d9ed25272987471cdb8b70395c2460bdb

Website

• Product: https://github.com/kokke/tiny-regex-c/

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #833966: tiny-regex-c 0.1.0 Regular Expression Denial of Service (by Fantasy)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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