Incorrect Calculation of Buffer Size Affecting glibc-common package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

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  • Snyk IDSNYK-RHEL9-GLIBCCOMMON-16122967
  • published22 Apr 2026
  • disclosed20 Apr 2026

Introduced: 20 Apr 2026

NewCVE-2026-5450  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 glibc-common.

NVD Description

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

Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.

CVSS Base Scores

version 3.1