Vulnerability · Published Jun 8, 2026 · Assigned by VulDB
CVE-2026-11478kokke tiny-regex-c Pattern re.c matchstar redos
Low 3.3
In plain English
A low-severity regular-expression denial of service in tiny-regex-c from kokke. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| kokke | tiny-regex-c | f2632c6d9ed25272987471cdb8b70395c2460bdb |
Weakness: CWE-1333, CWE-400 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
References
- VDB-369098 | kokke tiny-regex-c Pattern re.c matchstar redos vdb-entry, technical-description
- VDB-369098 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-11478 | CVE Analysis and Report third-party-advisory
- Submit #833966 | tiny-regex-c 0.1.0 Regular Expression Denial of Service third-party-advisory
- https://github.com/kokke/tiny-regex-c/issues/100 issue-tracking
- https://github.com/user-attachments/files/28046213/tiny-regex-c-redos-poc.zip exploit
- https://github.com/kokke/tiny-regex-c/ product