CVE-2026-11478 kokke tiny-regex-c Pattern re.c matchstar redos
A local attacker can cause denial of service in the tiny-regex-c library via inefficient regular expression complexity in the matchstar function.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11478?
CVE-2026-11478 is a medium-severity denial of service vulnerability in kokke tiny-regex-c, published on 8 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Which versions are affected by CVE-2026-11478?
How do I fix CVE-2026-11478?
No fix has been published for CVE-2026-11478 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-11478 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11478 exists.
Sources
Also known as GHSA-8hjh-2xhj-mx62.