High severity7.5NVD Advisory· Published Aug 18, 2022· Updated Jun 17, 2026
CVE-2021-32862
CVE-2021-32862
Description
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nbconvertPyPI | < 6.5.1 | 6.5.1 |
Affected products
6- osv-coords3 versionspkg:apk/chainguard/kubeflow-pipelines-visualization-serverpkg:apk/wolfi/kubeflow-pipelines-visualization-serverpkg:pypi/nbconvert
< 2.4.0-r0+ 2 more
- (no CPE)range: < 2.4.0-r0
- (no CPE)range: < 2.4.0-r0
- (no CPE)range: < 6.5.1
Patches
Vulnerability mechanics
References
7- github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwqnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-9jmq-rx5f-8jwqghsaADVISORY
- lists.debian.org/debian-lts-announce/2023/06/msg00003.htmlnvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-32862ghsaADVISORY
- github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wmnvdBroken LinkWEB
- github.com/pypa/advisory-database/tree/main/vulns/nbconvert/PYSEC-2022-249.yamlghsaWEB
- lists.debian.org/debian-lts-announce/2024/09/msg00004.htmlnvd
News mentions
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