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CVE-2026-5440

HIGH CVSS: 7.5 Published: 2026-04-09 Modified: 2026-06-17

Description

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.

Affected Platforms

Orthanc-Server Orthanc

Weakness Type

CWE-770

References