CVE-2026-100256

HIGH
Published Sep 30, 2026 Modified Oct 2, 2026 CWE-829

Description

In JetBrains IntelliJ IDEA before 2026.2.3 rCE via Structural Search script constraints was possible in untrusted projects

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0013
Probability of exploitation
0.02%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-829 CWE-829

Affected Products

Vendor Product
jetbrains intellij_idea

References

Frequently Asked Questions

What is CVE-2026-100256? +
In JetBrains IntelliJ IDEA before 2026.2.3 rCE via Structural Search script constraints was possible in untrusted projects It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2026-100256? +
CVE-2026-100256 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0013, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-100256? +
CVE-2026-100256 affects products from jetbrains, specifically: intellij_idea. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-100256? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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