GHSA-c2xx-cjmh-9q8f Wagtail: Improper restriction handling on descendant collections in Documents and Images API

Not scored Published

An attacker with API access can view filenames and names of documents and images in private collections due to improper restriction handling.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is GHSA-c2xx-cjmh-9q8f?

GHSA-c2xx-cjmh-9q8f is a missing authorization vulnerability in wagtail, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Impact

The Documents and Images API V2 incorrectly listed items in descendants of private collections, which should inherit the view restrictions defined on their ancestors. A user with access to the API could see the filename and name of documents and images in these descendant collections.

Patches

Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.

Workarounds

Site owners using Wagtail's API can avoid the vulnerability by adding authentication to the Documents and Images APIs.

Acknowledgements

Many thanks to Ta Duc Thien for reporting this issue.

For more information

If you have any questions or comments about this advisory:

Which versions are affected by GHSA-c2xx-cjmh-9q8f?

8 open source packages ship an affected version, including wagtail.

PackageAffectedFixed in
wagtail PyPIAll versions7.0.9
wagtail PyPIAll versions7.0.9
wagtail PyPIFrom 7.17.3.4
wagtail PyPIFrom 7.17.3.4
wagtail PyPIFrom 7.47.4.3
wagtail PyPIFrom 7.47.4.3
2 more packages
wagtail PyPIFrom 8.0rc18.0rc2
wagtail PyPIFrom 8.0rc18.0rc2

How do I fix GHSA-c2xx-cjmh-9q8f?

Upgrade wagtail to a fixed version for your release line: 7.0.9, 7.3.4, 7.4.3 or 8.0rc2.

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

Is GHSA-c2xx-cjmh-9q8f being exploited?

There is no known exploitation of GHSA-c2xx-cjmh-9q8f in the wild and no public exploit code.

Sources

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