PT-2026-44964 · Jetbrains · Pycharm

CVE-2026-49384 · Published 2026-05-29 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions JetBrains PyCharm versions prior to 2025.3.4

Description Stored Cross-Site Scripting (XSS) is possible within Jupyter notebook Markdown cells. Cross-Site Scripting is a type of security flaw where malicious scripts are injected into trusted websites or applications.

Recommendations Update to version 2025.3.4.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-49384

Affected Products

Pycharm

References · 5

• https://jetbrains.com/privacy-security/issues-fixed · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-49384 · Security Note
• https://t.me/cveNotify/211295 · Telegram Post
• https://twitter.com/CVEnew/status/2060470667816907254 · Twitter Post
• https://t.me/cveNotify/165442 · Telegram Post