CVE-2026-82833 Missing authorization in Auto Labeling Pipeline Module to Annotate a Document Automatically

Medium 5.3 Published Updated

Remote attackers can bypass access controls to view project example details in Doccano, exposing sensitive annotation data.

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-2026-82833?

CVE-2026-82833 is a medium-severity missing authorization vulnerability in Doccano Auto Labeling Pipeline Module to Annotate a Document Automatically, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was identified in Doccano Open Source Annotation Tools for Machine Learning Practitioners and Auto Labeling Pipeline Module to Annotate a Document Automatically up to 1.8.5. Affected by this issue is the function ExampleDetail of the file /v1/projects/1/examples/ of the component Project Example Detail Endpoint. Such manipulation leads to improper access controls. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-284, CWE-266

Which versions are affected by CVE-2026-82833?

How do I fix CVE-2026-82833?

No fix has been published for CVE-2026-82833 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-2026-82833 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82833 exists.

Sources

Also known as GHSA-hcjw-ww7p-48cr.

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