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CVE-2026-75056 JetBrains CVE debrief

CVE-2026-75056 is a high-severity vulnerability in JetBrains IntelliJ IDEA, allowing remote code execution via the Markdown export tool. The vulnerability has a CVSS score of 7.8 and was patched in version 2026.2.1. Affected product deployments should be identified, and owners assigned for follow-up. The CVE record and NVD entry provide limited information about the vulnerability, with the vendor advisory being the primary source for details. Defenders should prioritize verifying exposure and remediation for IntelliJ IDEA users, especially those with unpatched versions before 2026.2.1. This vulnerability has potential operational impacts, including possible exploitation attempts,

Vendor
JetBrains
Product
IntelliJ IDEA
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-17
Original CVE updated
2026-09-11
Advisory published
2026-08-17
Advisory updated
2026-09-11

Who should care

Defenders and administrators using JetBrains IntelliJ IDEA, especially those with unpatched versions before 2026.2.1, should assess exposure and prioritize remediation.

Why it matters

CVE-2026-75056 is a high-severity vulnerability in JetBrains IntelliJ IDEA, allowing remote code execution via the Markdown export tool. Defenders should prioritize verifying exposure and remediation for IntelliJ IDEA users, especially those with unpatched versions before 2026.2.1.

  • Potential remote code execution
  • Need for patching and version verification
  • Possible exploitation attempts

Technical summary

CVE-2026-75056 is a high-severity vulnerability in JetBrains IntelliJ IDEA, allowing remote code execution via the Markdown export tool. The vulnerability has a CVSS score of 7.8 and was patched in version 2026.2.1. Defenders should prioritize verifying exposure and remediation for IntelliJ IDEA users, especially those with unpatched versions before 2026.2.1. The vulnerability has potential operational impacts, including possible exploitation attempts and the need for patching and version verification.

Defensive priority

Defenders should prioritize verifying exposure and remediation for IntelliJ IDEA users, especially those with unpatched versions before 2026.2.1.

Recommended defensive actions

  • Verify IntelliJ IDEA version and apply patch 2026.2.1 or later
  • Review and limit use of Markdown export tool
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability, with the vendor advisory being the primary source for details. Evidence is limited to CVE and NVD data. Defenders should verify IntelliJ IDEA version and apply patch 2026.2.1 or later. The vulnerability allows remote code execution via the Markdown export tool, with a CVSS score of 7.8.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-75056 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-75056

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-75056 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-75056

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.