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CVE-2026-100256

7.8 · HIGH

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

Published Sep 30, 2026jetbrainsCWE-829EPSS 0.13%

Overview

CVE-2026-100256 is a high-severity vulnerability affecting jetbrains intellij_idea. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

Remediation

Check the references section for vendor advisories and patches from jetbrains. Update intellij_idea to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
jetbrainsintellij_idea>= 0, < 2026.2.3Affected

References

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

How CyberStrike helps

Frequently asked questions

What is CVE-2026-100256?

CVE-2026-100256 is a high-severity vulnerability affecting jetbrains intellij_idea. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-100256?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-100256?

Check the references section for vendor advisories and patches from jetbrains. Update intellij_idea to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-100256?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-100256 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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