Improper Validation of Syntactic Correctness of Input Affecting glibc-langpack-mt package, versions <0:2.39-121.el10_2


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-CENTOS10-GLIBCLANGPACKMT-15767006
  • published26 Mar 2026
  • disclosed20 Mar 2026

Introduced: 20 Mar 2026

CVE-2026-4437  (opens in a new tab)
CWE-1286  (opens in a new tab)

How to fix?

Upgrade Centos:10 glibc-langpack-mt to version 0:2.39-121.el10_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-mt package and not the glibc-langpack-mt package as distributed by Centos. See How to fix? for Centos:10 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, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.

CVSS Base Scores

version 3.1