Red Hat Enterprise Linux udisks2 as-user privileges management

Summaryinfo

A vulnerability identified as very critical has been detected in Red Hat Enterprise Linux. This impacts an unknown function of the component udisks2. Performing a manipulation of the argument as-user results in privileges management. This vulnerability was named CVE-2026-7867. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability classified as very critical has been found in Red Hat Enterprise Linux (affected version not known). This affects some unknown functionality of the component udisks2. The manipulation of the argument as-user with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at access.redhat.com. This vulnerability is uniquely identified as CVE-2026-7867 since 05/05/2026. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/06/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Enterprise Linux

License

• commercial

Website

• Vendor: https://www.redhat.com/

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