CVE-2026-48052 Papra: Cross-organization tag deletion and modification via authenticated cross-tenant request

Medium 5.4 Published Updated

Authenticated users can delete or rename tags in other organizations by exploiting missing tenant checks in database queries.

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-2026-48052?

CVE-2026-48052 is a medium-severity missing authorization vulnerability in papra-hq papra, published on 27 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Papra is a minimalistic document management and archiving platform. Prior to version 26.5.0, an authenticated user who is a member of any organization can delete or rename tags belonging to a different organization, given the target tag's ID. The route handler verifies the caller's membership of the ":organizationId" in the URL, but the repository write filters on tag.id alone, so the URL-level org scope never reaches the database. This issue has been patched in version 26.5.0.

Weakness: CWE-639

Which versions are affected by CVE-2026-48052?

How do I fix CVE-2026-48052?

No fix has been published for CVE-2026-48052 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-2026-48052 being exploited?

There is no known exploitation of CVE-2026-48052 in the wild and no public exploit code.

Sources

Also known as GHSA-wrx4-3vff-jm94.

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