CVE-2026-23918

Name: CVE-2026-23918
Creator: NVD / NIST
Published: 2026-05-04T15:16:03.583+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 42.80%

Last modified Jun 17, 2026

CVE-2026-23918 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.. EPSS estimates a 42.80% chance of exploitation in the next 30 days.

Description

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

42.80%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

Affected Software

Vendor	Product	Versions
Apache	Http Server	2.4.66

References

https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/04/19Mailing List, Third Party Advisory

Timeline

Published: May 4, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-23918?

How severe is CVE-2026-23918?

CVE-2026-23918 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 42.80% probability of exploitation in the next 30 days.

How do I fix CVE-2026-23918?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-23918?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST