CVE-2026-110118 WorkFlow-Engine through 9.6.11 Missing Authorization via flowableui buttonOperation Endpoints

High 7.1 Published Updated

Authenticated low-privileged users can approve or reassign other users' workflow tasks by manipulating task IDs in button operation endpoints.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-110118?

CVE-2026-110118 is a high-severity missing authorization vulnerability in risesoft-y9 WorkFlow-Engine, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

WorkFlow-Engine through 9.6.11 contains a missing authorization vulnerability that allows authenticated users to complete or reassign other users' workflow tasks via /vue/buttonOperation endpoints. Low-privileged attackers can supply a known taskId to the complete, completeTask or reAssign handlers to approve tasks or reassign them without authority.

Weakness: CWE-639

Which versions are affected by CVE-2026-110118?

How do I fix CVE-2026-110118?

No fix has been published for CVE-2026-110118 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-110118 being exploited?

There is no known exploitation of CVE-2026-110118 in the wild and no public exploit code.

Sources

Also known as GHSA-j9qx-hx2v-8q9m.

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