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CVE-2026-6658: Improper Neutralization of Input During Web Page Generation

🗓️ 26 Jun 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

XSS in jupyter/nbconvert <= 7.17.0 via unsanitized text/vnd.mermaid in HTML exports.

Related
Refs
ReporterTitlePublishedViews
Family
huntr
Huntr
XSS via unsanitized `text/vnd.mermaid` output in nbconvert HTML export
28 Mar 202609:40
–huntr
attackerkb
attackerkb
CVE-2026-6658
26 Jun 202609:40
–attackerkb
cve
CVE
CVE-2026-6658
26 Jun 202609:40
–cve
cvelist
Cvelist
CVE-2026-6658 Cross-site Scripting (XSS) in jupyter/nbconvert
26 Jun 202609:40
–cvelist
debiancve
Debian CVE
CVE-2026-6658
26 Jun 202609:40
–debiancve
euvd
EUVD
EUVD-2026-39642
26 Jun 202609:40
–euvd
nvd
NVD
CVE-2026-6658
26 Jun 202610:16
–nvd
opensuse
OPENSUSE Linux
jupyter-nbconvert-7.17.1-2.1 on GA media (moderate)
11 Sep 202600:00
–opensuse
osv
OSV
DEBIAN-CVE-2026-6658
26 Jun 202610:16
–osv
osv
OSV
OPENSUSE-SU-2026:11725-1 jupyter-nbconvert-7.17.1-2.1 on GA media
8 Sep 202600:00
–osv
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26 Jun 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 35.4
EPSS0.00227
SSVC
0