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Type Vulnerability

Apache HTTP Server · Code execution

Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE

1 sourceCVE-2026-119618

At a glance

Medium
7-day window, from the last update
Possible~0.4% estimated chance of attack in 30 days
Evidence-weighted, not popularity
Signal

~0.4% estimated chance of attack in 30 days. Exploitation not confirmed.

Why Medium

Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers.

Briefing

There is no written leader briefing for this story yet. These questions come from the facts we hold.

Questions to ask IT

  • Do we run Apache HTTP Server and Oracle Http Server, and which versions?
  • If it is not yet patched, what mitigation is in place, and will the fix be done by 19 Nov?

Next steps

  1. Confirm whether this affects systems or suppliers in your estate

Summary

  • The mod_http2 race condition, CVE-2026-119618, could let unauthenticated attackers execute code on servers with HTTP/2 enabled. The post Apache Patches Critical HTTP Server RCE Found by Anthropic, Google appeared first on SecurityWeek. " ": "The mod_http2 race condition, CVE-2026-119618, could let unauthenticated attackers execute code on servers with HTTP/2 enabled." " ": "Apache Patches Critical HTTP Server RCE Found by Anthropic, Google" This website stores cookies on your computer.
  • CVE-2026-119618 has an estimated ~0.4% chance of attack in 30 days (34.5th percentile) as of 2026-11-12 — probability signal, not confirmed exploitation

Read the original reportSecurityWeek(opens in a new tab)

Products and services involved

Pulse

Last change 2h ago · Next recheck 13 Nov 2026, 16:28 UK time

  1. Story12 Nov 2026, 16:28 UK time · 2h ago

    Linked reporting from SecurityWeek (independent original reporting).

    Read source (SecurityWeek)

1 entry so far. The timeline chart appears once this story has more history.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE

  • ProbableSummary fact75% confidence

    The mod_http2 race condition, CVE-2026-119618, could let unauthenticated attackers execute code on servers with HTTP/2 enabled. The post Apache Patches Critical HTTP Server RCE Found by Anthropic, Google appeared first on SecurityWeek. Apache Patches Critical HTTP Server RCE Found by Anthropic, Google This website stores cookies on your computer.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-119618

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2026-119618 has an estimated ~0.4% chance of attack in 30 days (34.5th percentile) as of 2026-11-12 — probability signal, not confirmed exploitation