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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Orthanc | DICOM Server | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
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References
History
Thu, 09 Apr 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Memory Exhaustion via Unbounded Content-Length | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-04-09T14:43:55.684Z
Reserved: 2026-04-02T19:22:26.410Z
Link: CVE-2026-5440
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-04-09T15:16:16.337
Modified: 2026-04-09T15:16:16.337
Link: CVE-2026-5440
Redhat
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OpenCVE Enrichment
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Weaknesses
No weakness.