CVE-2026-38638 Denial of service in n/a
Attackers can cause a Denial of Service in relibc via crafted input to the with_argv function, affecting applications using this library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-38638?
CVE-2026-38638 is a high-severity denial of service vulnerability in n/a, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in the with_argv function (/unistd/mod.rs) of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted input.
Weakness: CWE-400
Which versions are affected by CVE-2026-38638?
How do I fix CVE-2026-38638?
No fix has been published for CVE-2026-38638 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-2026-38638 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38638 exists.
Sources
Also known as GHSA-w8wr-7345-jpp3.