VulnSocial

CVE-2026-5440Disclosure(orthanc-server / orthanc)

LOWCVSS 7.5 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

orthanc-server CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • orthanc

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
orthanc-server
Products
orthanc

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-04-09: 2Technical Details · 2026-04-09: 204-09
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets3 URLs
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-5440 Memory Exhaustion Vulnerability in HTTP Server via Unbound... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-5440 Don't wait vulnerability scanning results: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=2

    Post summary

    The tweet references CVE‑2026‑5440, a memory‑exhaustion flaw, and links to a vulnerability details page, but lacks specifics on exploitation, fixes, or active attacks.

    0000037
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-5440 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 atta… https://www.cve.org/CVERecord?id=CVE-2026-5440

    Post summary

    The post announces a memory exhaustion vulnerability (CVE-2026-5440) arising from unbounded use of the Content‑Length header in an HTTP server.

    00000115
    57.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apporthanc-serverorthanc---

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