CVE-2026-19499 Affecting glibc-langpack-et package, versions <0:2.39-142.el10_2


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.3% (20th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ROCKY10-GLIBCLANGPACKET-20838624
  • published12 Oct 2026
  • disclosed14 Sept 2026

Introduced: 14 Sep 2026

CVE-2026-19499  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:10 glibc-langpack-et to version 0:2.39-142.el10_2 or higher.
This issue was patched in RLSA-2026:76781.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-et package and not the glibc-langpack-et package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:10 relevant fixed versions and status.

Calling strfmon and strfmon_l in the GNU C Library version 2.38 to 2.44 can write past the end of the caller-supplied output buffer when a conversion uses right-justified width padding.

Exploitation requires an application code path that calls strfmon or strfmon_l with right-justified width padding into a destination buffer that is large enough for the padding to succeed but too small for the internal memmove call. The field width or format may be attacker-influenced or a fixed susceptible pattern in the caller.

At the time of publication, no network-facing application impact is known.

CVSS Base Scores

version 3.1