What is CVE-2026-25847?

CVE-2026-25847 is a high-severity vulnerability in Jetbrains Pycharm, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-02-09.

How severe is CVE-2026-25847?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Jetbrains Pycharm

CVE-2026-25847

In JetBrains PyCharm before 2025.3.2 a DOM-based XSS on Jupyter viewer page was possible

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (0.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L.

Affected products

Jetbrains Pycharm — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.jetbrains.com/privacy-security/issues-fixed/

Frequently asked questions

What is CVE-2026-25847?: CVE-2026-25847 is a high-severity vulnerability in Jetbrains Pycharm, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-02-09.
How severe is CVE-2026-25847?: High severity. CVSS v3 base score is 8.2 out of 10.