CVE-2026-56853

ADVISORY - nist

Summary

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.

EPSS Score⁠: 0.00568 (0.455)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-770⁠

Allocation of Resources Without Limits or Throttling

ADVISORY - redhat

CWE-770⁠

Allocation of Resources Without Limits or Throttling

Impacted images

Advisories

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