CVE-2026-5440 PUBLISHED

Memory Exhaustion via Unbounded Content-Length

Assigner: certcc
Reserved: 02.04.2026 Published: 09.04.2026 Updated: 09.04.2026

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.

Product Status

Vendor Orthanc
Product DICOM Server
Versions
  • affected from 0 to 1.12.10 (incl.)

References

Problem Types

  • CWE-770 Allocation of Resources Without Limits or Throttling