Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-78410
Red Hat Red Hat Hardened Images — Util-linux: util-linux: restricted bind mounts do not pin the source, allowing x-mount.owner/group/mode redirection
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0016 4.1 —
AFFECTED
Product Versions Fixed
Red Hat Hardened Images unspecified 2.42.2-3.4.hum1
Red Hat Enterprise Linux 10 unspecified —
Red Hat Enterprise Linux 7 unspecified —
Red Hat Enterprise Linux 8 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat OpenShift Container Platform 4 unspecified —
TIMELINE
Aug 24 Reserved by redhat
Sep 2 Published (CNA: redhat)
Sep 3 PATCH SHIPPED — CVE-2026-78410 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 2.42.2-3.4.hum1.
Description
A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 24, 2026 | Reserved | Reserved by redhat |
| September 2, 2026 | Published | Published (CNA: redhat) |
| September 3, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-78410 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 2.42.2-3.4.hum1. |
Affected
Affected products and packages — 8 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Hardened Images | — | — | 2.42.2-3.4.hum1 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-78410 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 Sunday, October 4, 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.
