Bug 2568190 (CVE-2026-123301)

Summary: CVE-2026-123301 IntelliJ IDEA: IntelliJ IDEA: Cross-site scripting via OpenAPI preview error view
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in JetBrains IntelliJ IDEA. This flaw allows a remote attacker to execute arbitrary script code through a Document Object Model-based Cross-Site Scripting (DOM-based XSS) vulnerability in the OpenAPI preview error view. By tricking a user into opening a maliciously crafted OpenAPI specification that triggers an error display, an attacker could compromise the preview interface and access sensitive information.
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Description OSIDB Bzimport 2026-11-06 14:34:03 UTC
In JetBrains IntelliJ IDEA before 2026.3 dOM-based XSS in the OpenAPI preview error view was possible