Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-84233
Red Hat Red Hat Hardened Images — Rpm: command execution via macro expansion in `rpmuncompress -x` for crafted `.gem` filenames
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H N R U H H H 7.0 .0018 7.1 —
AFFECTED
Product Versions Fixed
Red Hat Hardened Images unspecified 6.1.0-1.hum1
Red Hat Enterprise Linux 10 unspecified —
Red Hat Enterprise Linux 6 unspecified —
Red Hat Enterprise Linux 7 unspecified —
Red Hat Enterprise Linux 8 unspecified —
Red Hat Enterprise Linux 9 unspecified —
TIMELINE
Sep 1 Reserved by redhat
Sep 1 Published (CNA: redhat)
Oct 2 PATCH SHIPPED — CVE-2026-84233 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 6.1.0-1.hum1.
Description
A flaw was found in rpm. A local attacker could supply a specially crafted `.gem` filename containing RPM macro syntax. When a user or automated workflow invokes `rpmuncompress -x` on this file, the macro expansion occurs during command construction. This allows the attacker to execute arbitrary commands with the privileges of the invoking account, leading to a compromise of confidentiality, integrity, and availability.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 1, 2026 | Reserved | Reserved by redhat |
| September 1, 2026 | Published | Published (CNA: redhat) |
| October 2, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-84233 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 6.1.0-1.hum1. |
Affected
Affected products and packages — 6 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Hardened Images | — | — | 6.1.0-1.hum1 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-84233 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
