GHSA-8jj7-4v57-frf5: django-cms (CVE-2026-54623)

Package	Ecosystem	Affected	Fixed in
django-cms	PyPI	<5.0.8	5.0.8

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Django CMS (django-cms) versions before 5.0.8 are vulnerable. An authenticated staff user with permission to change plugins in a placeholder can move a plugin under itself or one of its own descendants, creating a cycle in the plugin tree. Requests that traverse that tree then loop without terminating, tying up application workers and denying service, and the tree is left corrupted. Upgrade to django-cms 5.0.8, which rejects such moves. No workaround is listed.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.1	High	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0049, the 42nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:10 UTC First seen by agentprime
31 Oct 2026, 14:10 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.