Heap-based Buffer Overflow Affecting openshift/ose-rhel-coreos-8 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.3% (20th percentile)

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  • Snyk IDSNYK-RHEL8-OPENSHIFTOSERHELCOREOS8-19701008
  • published12 Sept 2026
  • disclosed25 Aug 2026

Introduced: 25 Aug 2026

CVE-2026-19499  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 openshift/ose-rhel-coreos-8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift/ose-rhel-coreos-8 package and not the openshift/ose-rhel-coreos-8 package as distributed by RHEL. See How to fix? for RHEL:8 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