Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99390.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-99390
Upstream
  • CVE-2026-78410
Published
2026-09-02T16:17:23Z
Modified
2026-09-09T05:29:25Z
Summary
CVE-2026-78410 affecting package util-linux 2.40.2-5
Details

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.

References

Affected packages

Azure Linux:3 / util-linux

Package

Name
util-linux
Purl
pkg:rpm/azure-linux/util-linux

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
2.40.2-5

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99390.json"