Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-78367
Red Hat Red Hat Hardened Images — Rpm: rpmbuild gettarspec() crafted tar member name → macro injection
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H N R U H H H 7.0 .0020 9.0 —
AFFECTED
Product Versions Fixed
Red Hat Hardened Images unspecified 6.1.0-1.3.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
Aug 24 Reserved by redhat
Aug 24 Published (CNA: redhat)
Oct 13 PATCH SHIPPED — CVE-2026-78367 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 6.1.0-1.3.hum1.
Description
A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 24, 2026 | Reserved | Reserved by redhat |
| August 24, 2026 | Published | Published (CNA: redhat) |
| October 13, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-78367 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 6.1.0-1.3.hum1. |
Affected
Affected products and packages — 6 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Hardened Images | — | — | 6.1.0-1.3.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-2026-78367 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 Monday, October 19, 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.
