What is RHSA-2026:56984?

RHSA-2026:56984 is a security advisory published by Red Hat Product Security with Low severity. Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Which CVE IDs does RHSA-2026:56984 cover?

RHSA-2026:56984 covers the following CVE IDs: CVE-2026-18739. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:56984?

RHSA-2026:56984 has a CVSS v3 base score of 2.5, published by Red Hat Product Security.

Which products are affected by RHSA-2026:56984?

RHSA-2026:56984 affects 4 products, including: Red Hat Hardened Images; popt-main@aarch64 as a component of Red Hat Hardened Images; popt-main@src as a component of Red Hat Hardened Images; popt-main@x86_64 as a component of Red Hat Hardened Images.

RHSA-2026:56984LowCVSS 2.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Vendor

Red Hat Product Security

Published

August 19, 2026

Last Modified

August 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-18739 →

📋 Description

CVE-2026-18739 — popt-devel: popt-static: Off-by-one in poptStuffArgs

🎯 Affected products4

Red Hat Hardened Images
popt-main@aarch64 as a component of Red Hat Hardened Images
popt-main@src as a component of Red Hat Hardened Images
popt-main@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:56984
externalhttps://access.redhat.com/security/cve/CVE-2026-18739
externalhttps://access.redhat.com/security/cve/CVE-2026-18743
externalhttps://access.redhat.com/security/updates/classification/
externalhttps://images.redhat.com/
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_56984.json