high · CVSS 7.8

CVE-2026-7867

Udisks2: udisks2: local privilege escalation via as-user option spoofing

Published 6 Aug 2026 · Source updated 4 Nov 2026 · Retrieved 2026-11-05 00:19 UTC

Statance checks for CVE-2026-7867. Connected servers are checked automatically against the fixed versions their distribution or package ecosystem has published for it, including app dependency lockfiles. Check my servers ↗

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What happened?

A flaw was found in udisks2. A local attacker with an active console session can exploit insufficient authorization checking on the 'as-user' option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. This allows the attacker to spoof the 'as-user' parameter, mounting filesystems on behalf of arbitrary users, including privileged accounts. This can lead to local privilege escalation through mount point injection and manipulation of the mount namespace visible to privileged users.

Description supplied by CVE Program. Formatting is simplified; follow the original advisory for full details.

Affected software and versions

Source-provided software and version information
Software	Version information	Fixed version
udisks	affected: 2.10.0 to < 2.11.2	See vendor advisory
udisks2Red Hat	unaffected: 0:2.11.0-2.el10_2.1 to < *	See vendor advisory
udisks2Red Hat	unaffected: 0:2.10.90-5.el10_0.3 to < *	See vendor advisory
udisks2Red Hat	Default status: unaffected	See vendor advisory
udisks2Red Hat	Default status: unaffected	See vendor advisory
udisks2Red Hat	Default status: unaffected	See vendor advisory

Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.

Is it being exploited?

This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.

CISA data retrieved 2026-11-06 16:38 UTC. Check CISA ↗

How to respond

Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.

Sources and remediation references

This public advisory does not determine whether a particular server is affected. Records are refreshed as sources change; verify urgent decisions against the original advisory.

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