CVE-2026-49384 — MEDIUM (6.1)

Q: What is CVE-2026-49384?

CVE-2026-49384 is a vulnerability with a CVSS score of 6.1 (MEDIUM). In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible

Q: How severe is CVE-2026-49384?

CVE-2026-49384 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-49384?

Check the references section above for vendor advisories and patch information. Affected products include: Jetbrains Pycharm.

Vulnerability Description

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

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Jetbrains	Pycharm	< 2025.3.4

Related Weaknesses (CWE)

CWE-79

References

https://www.jetbrains.com/privacy-security/issues-fixed/Vendor Advisory

FAQ

What is CVE-2026-49384?

CVE-2026-49384 is a vulnerability with a CVSS score of 6.1 (MEDIUM). In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible

How severe is CVE-2026-49384?

CVE-2026-49384 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-49384?

Check the references section above for vendor advisories and patch information. Affected products include: Jetbrains Pycharm.