CVE-2026-123854

EUVD-2026-118314
In JetBrains PyCharm before 2026.3 code execution was possible in Safe Mode via a crafted Jupyter notebook widget module
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
JetBrainsCNA
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
jetbrainspycharm
𝑥
< 2026.3
CNA
Common Weakness Enumeration
References
https://www.jetbrains.com/privacy-security/issues-fixed/