Bug 2318700 (CVE-2024-21535)

Summary:	CVE-2024-21535 markdown-to-jsx: Cross-site Scripting vulnerability in markdown-to-jsx
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alcohan, cdaley, gparvin, jchui, jkoehler, ktsao, lbainbri, lbalhar, nboldt, njean, owatkins, pahickey, rhaigner, rtaniwa, tkral
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in markdown-to-jsx. This vulnerability allows an attacker to execute arbitrary code via Cross-site scripting (XSS) through the src property by injecting a malicious iframe element into the markdown.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2318703, 2318704
Bug Blocks:

Description OSIDB Bzimport 2024-10-15 06:01:10 UTC

Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown.

Comment 1 Lumír Balhar 2024-10-15 10:04:02 UTC

Reported upstream for jupyterlab: https://github.com/jupyterlab/jupyterlab/issues/16864

Comment 2 Lumír Balhar 2024-10-16 08:57:48 UTC

Fixed upstream in https://github.com/jupyterlab/jupyterlab/commit/e707512050c9b54e4a7a76c313f64cf0a9c4abc2 I'm waiting for the next release.