Description
Papermerge Core through 3.5.3 contains a missing authorization vulnerability that allows authenticated users to list other groups' tags and document types by supplying a group_id parameter. Attackers who know a group's UUID can query GET /tags/all or GET /document-types/all, which skip the user_belongs_to check, to disclose metadata of groups they do not belong to.
Metrics
CVSS 3.1 3.1/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| papermerge | papermerge-core | <= 3.5.3 |
References
- https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/document_types/router.py#L37-L62
- https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/tags/router.py#L39-L64
- https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269
- https://github.com/papermerge/papermerge-core/issues/1291
- https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-via-tags-all-and-document-types-all
Timeline
- Published
- Oct 14, 2026
- Last modified
- Oct 14, 2026
- NVD status
- Deferred