VDB

CVE-2026-5440

CVE-2026-5440 PUBLISHED

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.

EPSS 1.89% · 83.5th percentile

Risk Scores

EPSS Score
1.89%
83.5th percentile

Affected Products

VendorProductVersions
OrthancDICOM Server0

Timeline

  • Apr 9, 2026 CVE Published
  • Apr 9, 2026 PoC Published
  • Apr 9, 2026 Security Advisory
  • Apr 10, 2026 EPSS Score
  • Apr 14, 2026 CVE Updated
  • Apr 15, 2026 Security Advisory
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
  • May 23, 2026 EPSS Score
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