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Critical Apache HTTP Server flaw patched in version 2.4.71

Affected versions run 2.4.55 through 2.4.70; Wiz says 64% of cloud environments host vulnerable resources.

Published Nov 12, 2026 · 18:12 UTC2 reports

The short version

  • Anthropic and Google Cloud's Vulnerability Research Team independently discovered CVE-2026-119618, a critical flaw in Apache's HTTP/2 module.[Hacker News]
  • Apache HTTP Server 2.4.55 through 2.4.70 is affected when HTTP/2 is enabled, and version 2.4.71 contains the fix.[Slashdot · Hacker News]
  • Wiz data says 64% of cloud environments have vulnerable resources and 51% have publicly exposed instances.[Hacker News]
  • Wiz reported no exploit or in-the-wild exploitation at publication, but the vendor cites public research showing a reliable exploit; that research is unnamed.[Slashdot · Hacker News]

Key facts

  • CVE-2026-119618 is a critical synchronization vulnerability in Apache HTTP Server's HTTP/2 module.[Slashdot · Hacker News]
  • The flaw was independently discovered by Anthropic and Google Cloud's Vulnerability Research Team.[Hacker News]
  • Affected versions are Apache HTTP Server 2.4.55 through 2.4.70 with HTTP/2 enabled; version 2.4.71 contains the fix.[Slashdot · Hacker News]
  • Wiz data indicates 64% of cloud environments have vulnerable resources and 51% have publicly exposed instances.[Hacker News]
  • As of publication, Wiz reported no available exploit and no reported in-the-wild exploitation.[Slashdot · Hacker News]
  • The vendor's advisory says public research demonstrated a reliable exploit in default configurations with mod_http2 enabled, but does not name or link that research.[Slashdot]

What remains uncertain

  • The vendor's claim of a reliable public exploit is unverified, because the advisory does not name or link the research.[Slashdot]
  • Exploit and exploitation status applies only as of publication and may change.[Slashdot · Hacker News]
  • The 64% and 51% exposure figures are Wiz data and are not independently verified in the provided reporting.[Hacker News]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.