CVE-2026-23918: exploitation status and patch state

CVE-2026-23918 · CVSS 8.8 HIGH · patch available

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.

Is CVE-2026-23918 exploited?

• Not in the CISA KEV catalog.
• Public exploit code: proof of concept.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

• CBL-Mariner Releases

What PlainSec published about CVE-2026-23918

• Debian 13.5 Refreshes Install Media, Not Your Live Fleet (2026-05-18)
• Apache Patch Hides Module-Specific Exposure Across Hosts (2026-05-07)
• Apache Protocol Parsers Expose Servers to RCE and DoS (2026-05-05)

Primary sources

• NVD record
• Exploit-DB 52577

What this record does not say

• No EPSS score.
• No affected package data.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.