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In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible

Medium CVSS 6.1
CVECVE-2026-49384
First seen2026-07-22 07:16 UTC
Disclosed2026-05-29 19:16 UTC
Last updated2026-07-22 07:16 UTC
Channel statusauto

Summary

In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • :

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD