πŸ” CVE Alert

CVE-2026-57576

MEDIUM 6.5

plone.app.dexterity and plone.app.contenttypes have a Denial of Service due to excessive title or description length

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-400
Vendor plone
Product plone.app.dexterity
Published Sep 22, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

plone / plone.app.dexterity
= 5.0.0 >= 4.0.0, < 4.1.3 < 3.2.3
plone / plone.app.contenttypes
= 5.0.0 >= 4.0.0, < 4.0.10 < 3.0.12

References

NVD β†— CVE.org β†— EPSS Data β†—
github.com: https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv github.com: https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-8pcw-h6w9-h46g github.com: https://github.com/plone/plone.app.contenttypes/commit/13dc98a578341aac24a1e65fd9bc7ac8a07d168a github.com: https://github.com/plone/plone.app.contenttypes/commit/21bae6ebe424689eeac9a5884fc0da35f4944e63 github.com: https://github.com/plone/plone.app.contenttypes/commit/639c0619f371df578e69ec94e5ca98e60fd6ed58 github.com: https://github.com/plone/plone.app.contenttypes/commit/7bb03e8ec6c6bd0e645f445b0755e85a51afb158 github.com: https://github.com/plone/plone.app.contenttypes/commit/bed1547d4f8b1fc995f2c76f30ba5f20276a8ad6 github.com: https://github.com/plone/plone.app.dexterity/commit/0d317df663823445200d0569a66a95b7e4a9c50d github.com: https://github.com/plone/plone.app.dexterity/commit/2fdceb120ca86682a408f3a14753cfcf5126d9d9 github.com: https://github.com/plone/plone.app.dexterity/commit/411689047f9a3521899ae6992a9b0efbd0592a8f github.com: https://github.com/plone/plone.app.dexterity/commit/cbcef731c0882146b9bf30688cdc639d879878fb github.com: https://github.com/plone/plone.app.dexterity/commit/f3596538cf7670bb8bc27b0dfa0b1da41c8b8a3a github.com: https://github.com/plone/plone.app.dexterity/commit/fb45bfdb18f1dfb3ed55e477947a3df9a6ee9e20