Apache HTTP Server: http2: double free and possible RCE on early reset
Title source: cnaDescription
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.
Exploits (9)
nomisec
SCANNER
2 stars
by qassam-315 · poc
https://github.com/qassam-315/CVE-2026-23918-Elite-Auditor
nomisec
WORKING POC
by CYFARE · poc
https://github.com/CYFARE/CVE-2026-23918-Apache-HTTP-Server-DoubleFree-PoC
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
https://httpd.apache.org/security/vulnerabilities_24.html
Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/05/04/19
Scores
CVSS v3
8.8
EPSS
0.0006
EPSS Percentile
18.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Lab Environment
COMMUNITY
SUSPICIOUS
Community Lab
+5 more repos
Details
CWE
CWE-415
Status
published
Products (2)
apache/http_server
2.4.66
Apache Software Foundation/Apache HTTP Server
2.4.66
Published
May 04, 2026
Tracked Since
May 04, 2026