CVE-2026-4438

Publication date

2026-03-20 19:59:06

Family

glibc

State

PUBLISHED

Description

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the librarys DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.