Severity: critical Affected versions:
- Apache HTTP Server 2.4.55 through 2.4.70 Description: Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42. Credit: Anthropic's OSS Scanner, as vulnerability ANT-2026-MAPKT6MZ (finder) Anthony Weems and Simon Scannell of the Google Cloud Vulnerability Research (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-119618 Timeline: 2026-10-26: reported
