CVE-2026-18275 Authorization Bypass Through User-Controlled Key in eScriptorium

Medium 6.5 Published Updated

Authenticated users can overwrite other users' document content by manipulating part primary keys due to improper queryset restrictions in serializers.

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-2026-18275?

CVE-2026-18275 is a medium-severity missing authorization vulnerability in Scripta eScriptorium, published on 6 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Authorization bypass in the process and annotation taxonomy serializers in Scripta eScriptorium through 26.04.1 allows a remote authenticated user to run segmentation and transcription against other users' document parts, overwriting their content, via part primary keys supplied to a many=True related field whose queryset restriction was applied to the ManyRelatedField instead of its child_relation and therefore had no effect

Weakness: CWE-639

Which versions are affected by CVE-2026-18275?

It affects 1 product.

Products include Escriptorium Escriptorium.

How do I fix CVE-2026-18275?

No fix has been published for CVE-2026-18275 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-2026-18275 being exploited?

There is no known exploitation of CVE-2026-18275 in the wild and no public exploit code.

Sources

Also known as GHSA-4mrh-554p-w3v7.

Is CVE-2026-18275 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free