CVE-2026-88838: Protection Mechanism Failure in Red Hat Red Hat Hardened Images
Description
A flaw was found in BusyBox's mount utility. A non-root user can bypass mount security restrictions set in /etc/fstab by specifying clearing-mask options on the command line. These options pass the non-root flag filter and are merged with fstab options as strings; when the combined options are re-parsed, clearing options can override nosuid, nodev, and noexec protections the administrator intended to enforce.
CVSS v3.1
Score 5.5medium
Affected software
Red Hat
Red Hat Hardened Images
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-09-10T09:42:04.559Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-88838","vendor":"Red Hat"}]
Threat ID: 6ace649b2cdf04f6568af142
Added to database: 10/13/2026, 17:04:27 UTC
Last updated: 10/13/2026, 17:04:27 UTC
Views: 1
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