CVE-2026-4438 Affecting glibc-langpack-sah package, versions <0:2.34-270.0.1.el9_8


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.32% (24th percentile)

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  • Snyk IDSNYK-ORACLE9-GLIBCLANGPACKSAH-17575813
  • published26 Jun 2026
  • disclosed20 Mar 2026

Introduced: 20 Mar 2026

CVE-2026-4438  (opens in a new tab)

How to fix?

Upgrade Oracle:9 glibc-langpack-sah to version 0:2.34-270.0.1.el9_8 or higher.
This issue was patched in ELSA-2026-20597.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-sah package and not the glibc-langpack-sah package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1