Bug 2568213 (CVE-2026-123314)

Summary: CVE-2026-123314 IntelliJ IDEA: IntelliJ IDEA: Information disclosure via XML External Entity injection in HTTP Client
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: low    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in IntelliJ IDEA. An XML External Entity (XXE) injection vulnerability in the HTTP Client can lead to unauthorized information disclosure. When a user sends an HTTP request to an untrusted or compromised server, the server can return a crafted XML response containing external entity references. Processing this response may allow an attacker to access local files or sensitive system data.
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Description OSIDB Bzimport 2026-11-06 14:35:30 UTC
In JetBrains IntelliJ IDEA before 2026.3, 
2026.2.4 xXE attack was possible via an XML response to an HTTP Client request