What is CVE-2021-32862?

CVE-2021-32862 is a high-severity vulnerability in Jupyter Nbconvert, classified under Cross-site Scripting. CVSS score: 7.5/10. Published 2022-08-18.

How severe is CVE-2021-32862?

High severity. CVSS v3 base score is 7.5 out of 10.

XSS in Jupyter Nbconvert

CVE-2021-32862

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 m…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (74.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jupyter Nbconvert — versions <= 6.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq
github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wm
[debian-lts-announce] 20230603 [SECURITY] [DLA 3442-1] nbconvert security update (mailing-list)

Frequently asked questions

What is CVE-2021-32862?: CVE-2021-32862 is a high-severity vulnerability in Jupyter Nbconvert, classified under Cross-site Scripting. CVSS score: 7.5/10. Published 2022-08-18.
How severe is CVE-2021-32862?: High severity. CVSS v3 base score is 7.5 out of 10.