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CVE-2026-5440

7.5 high SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 7.5 · orthanc-serverNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:orthanc-server:orthanc:*:*:*:*:*:*:*:*

References 3