Double Free Affecting apache/httpd package, versions [,2.4.67)


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
49.73% (99th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Double Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-APACHEHTTPD-16417739
  • published5 May 2026
  • disclosed4 May 2026
  • creditBartlomiej Dmitruk, Stanislaw Strzalkowski

Introduced: 4 May 2026

CVE-2026-23918  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade apache/httpd to version 2.4.67 or higher.

Overview

Affected versions of this package are vulnerable to Double Free through the http2 process. An attacker can execute arbitrary code or cause a denial of service by triggering a double free during an early reset of an HTTP/2 connection.

CVSS Base Scores

version 4.0
version 3.1