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Microsoft Security Response CenterCVE-2026-58055

nghttp2 nghttpx - HTTP Request/Response Smuggling via Upgrade Request with Content-Length

Mariner

Read the vendor bulletin Get alerts for azl3 fluent-bit 3.1.10-6 on Azure Linux
5.4CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • azl3 fluent-bit 3.1.10-6 on Azure Linux 3.0
  • azl3 rust 1.75.0-30 on Azure Linux 3.0
  • azl3 nghttp2 1.61.0-3 on Azure Linux 3.0
  • azl3 rust 1.90.0-9 on Azure Linux 3.0
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-58055View CVSS, KEV, EPSS, and threat context
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