CVE-2026-5440 — Memory Exhaustion via Unbounded Content-Length
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 supp…
Published: 2026-04-09 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7