mediumCVSS 6.5Vulnerability

GHSA-8pcw-h6w9-h46g

### Impact When creating an Image or File with a very large filename, Plone can become unresponsive. Even if the content loads, it can be hard to edit or delete, because the UI is unwieldy. ### Patches The problem has been patched in `plone.app.contenttypes`. * On Plone 6.2, upgrade to `plone.app.contenttypes ` 5.0.1. * On Plone 6.1, upgrade to `plone.app.contenttypes ` 4.0.10. * On Plone 6.0, upgrade to `plone.app.contenttypes ` 3.0.12 Another part of this problem has been patched in `plone.app.dexterity`. See [this advisory](https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv). ### Workarounds There are no known workarounds. This problem was responsibly reported by Aldin Visnjic to the [Plone/Zope Security Team](mailto:[email protected]). Thank you! Note: The Plone/Zope Security team felt that the kind of fixes that were needed could be disruptive in corner cases if they were not careful. So they decided to develop the fixes publicly, giving the whole community the chance the review, and giving them the benefit from early feedback.

Properties

ghsa_id
GHSA-8pcw-h6w9-h46g
severity
medium
summary
plone.app.contenttypes has a Denial of Service in File Upload due to excessive filename length
cvss_score
6.5
cve_id
GHSA-8pcw-h6w9-h46g
cvss_vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
signal_observed_at
2026-09-23T22:45:22+00:00
is_ghsa_only
true
ghsa_published
2026-09-23T21:49:51Z
source_url
https://github.com/advisories/GHSA-8pcw-h6w9-h46g
ghsa_updated
2026-09-23T21:49:52Z

Related Entities (4)

VULNERABLE_TO (1)

[Software]pip/plone.app.contenttypes

AFFECTS (1)

[Software]pip/plone.app.contenttypes

HAS_WEAKNESS (1)

[Weakness]Uncontrolled Resource Consumption

REPORTED_BY (1)

[Source]GitHub Advisory Database

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GHSA-8pcw-h6w9-h46g (CVSS 6.5) — Ninja Signal Threat Intelligence | Ninja Signal