Out-of-bounds Write Affecting glibc package, versions <2.43-r7


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.45% (36th percentile)

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  • Snyk IDSNYK-WOLFILATEST-GLIBC-16354632
  • published4 May 2026
  • disclosed20 Apr 2026

Introduced: 20 Apr 2026

CVE-2026-5450  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Wolfi glibc to version 2.43-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Wolfi. See How to fix? for Wolfi 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