CVE-2026-57576
Description
plone.app.dexterity is a content-type system for the Plone content management system, and plone.app.contenttypes provides Plone’s Dexterity-based content types. Plone.app.dexterity versions through 3.2.2, 4.0.0 through 4.1.2, and 5.0.0, and plone.app.contenttypes versions through 3.0.11, 4.0.0 through 4.0.9, and 5.0.0 are vulnerable to denial of service because an authenticated user can create content with excessively long titles, descriptions, or uploaded-file names, causing Plone to become unresponsive and potentially making the resulting content difficult to edit or delete. The vulnerability is patched in plone.app.dexterity versions 3.2.3, 4.1.3, and 5.0.1, and in plone.app.contenttypes versions 3.0.12, 4.0.10, and 5.0.1.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/plone/plone.app.contenttypes/commit/13dc98a578341aac24a1e65fd9bc7ac8a07d168a
- https://github.com/plone/plone.app.contenttypes/commit/21bae6ebe424689eeac9a5884fc0da35f4944e63
- https://github.com/plone/plone.app.contenttypes/commit/639c0619f371df578e69ec94e5ca98e60fd6ed58
- https://github.com/plone/plone.app.contenttypes/commit/7bb03e8ec6c6bd0e645f445b0755e85a51afb158
- https://github.com/plone/plone.app.contenttypes/commit/bed1547d4f8b1fc995f2c76f30ba5f20276a8ad6
- https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-8pcw-h6w9-h46g
- https://github.com/plone/plone.app.dexterity/commit/0d317df663823445200d0569a66a95b7e4a9c50d
- https://github.com/plone/plone.app.dexterity/commit/2fdceb120ca86682a408f3a14753cfcf5126d9d9
- https://github.com/plone/plone.app.dexterity/commit/411689047f9a3521899ae6992a9b0efbd0592a8f
- https://github.com/plone/plone.app.dexterity/commit/cbcef731c0882146b9bf30688cdc639d879878fb
- https://github.com/plone/plone.app.dexterity/commit/f3596538cf7670bb8bc27b0dfa0b1da41c8b8a3a
- https://github.com/plone/plone.app.dexterity/commit/fb45bfdb18f1dfb3ed55e477947a3df9a6ee9e20
- https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv
CWEs
CWE-400
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.