CVE-2026-125106 Wagtail: Improper restriction handling on Page translation API endpoint

Medium 6.5 Published Updated
Exploited in the wild
Not known
Fix
Available

What is CVE-2026-125106?

CVE-2026-125106 is a medium-severity vulnerability in wagtail, published on 9 Nov 2026.

Official description

Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, a Wagtail CMS user with the submit translations permission can call the Admin API copy for translation action for a source page that the user cannot edit. The action copies the inaccessible page into a translation, allowing the user to view its contents despite the missing source-page edit permission. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.

Weakness: CWE-280

Which versions are affected by CVE-2026-125106?

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

PackageAffectedFixed in
wagtail PyPIAll versions7.0.9
wagtail PyPIFrom 7.1rc17.3.4
wagtail PyPIFrom 7.4rc17.4.3
wagtail PyPIFrom 8.0rc18.0rc2

How do I fix CVE-2026-125106?

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

Is CVE-2026-125106 being exploited?

There is no known exploitation of CVE-2026-125106 in the wild and no public exploit code.

Sources

Also known as GHSA-jm5p-837g-rv8g.

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