Bug 2119763 (CVE-2021-32862)

Summary:	CVE-2021-32862 nbconvert: arbitrary html injection
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	nonamedotc, python-sig
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nbconvert 6.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-09-02 07:56:20 UTC	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:	2119764
Bug Blocks:

Description Avinash Hanwate 2022-08-19 10:54:52 UTC

The GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert. When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server (eg: nbviewer).

https://github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq
https://github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wm

Comment 1 Avinash Hanwate 2022-08-19 10:55:13 UTC

Created python-nbconvert tracking bugs for this issue:

Affects: fedora-all [bug 2119764]

Comment 2 Product Security DevOps Team 2022-09-02 07:56:18 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.