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cve recordmedium

CVE-2026-4438

gnu · glibc

Published
CVSS5.4
Severitymedium
WeaknessCWE-20
ExploitedNot in CISA KEV

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's 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.

References

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