CVE-2026-38638: Relibc relibc vulnerability
Published Aug 28, 2026
·Updated
An issue in the withargv function (/unistd/mod.rs) of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted input.
Affected Software
1 affected component
relibc relibc
Event History
Aug 28, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Frequently Asked Questions
1
What does an attacker need to exploit this issue?
The issue is triggered through a crafted input to the with_argv function in /unistd/mod.rs. The available information does not specify the required access level, delivery path, or whether remote exploitation is possible.
2
What impact is documented?
The documented impact is denial of service. No confidentiality or integrity impact is stated in the available information.
3
How can I determine whether my code may be affected?
Review whether your relibc source includes the with_argv implementation in /unistd/mod.rs at or based on commit 61f42d, and whether untrusted or attacker-controlled input can reach that function.