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Generated remediation guidance and an executive summary. No account required.
A memory exhaustion vulnerability exists in the HTTP server due to unbounded use of the `Content-Length` header. The server allocates memory directly based on the attacker supplied header value without enforcing an upper limit. A crafted HTTP request containing an extremely large `Content-Length` value can trigger excessive memory allocation and server termination, even without sending a request body.
Use CWE-770, Orthanc-Server vendor hub and Orthanc product page to widen CVE-2026-5440 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-5443, CVE-2026-5442 and CVE-2025-0896 for nearby disclosures in the same product family.