CVE•Published 2026-05-04•Modified 2026-05-04•1 article on news•7 live references•NVD data
CVE-2026-23918Apache · Http_server
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-05-04
Modified 2026-05-04
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag238,358 hosts
vuln:CVE-2026-23918Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Apache Http Server" version:"2.4.66"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Http Server"HTTP body or banner mentions "Http Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-23918Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-23918Censys host search filtered to this CVE id.
grep.app
CVE-2026-23918Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-23918GitHub code search for direct mentions.
Google dork
"CVE-2026-23918" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2026-239188 repos
nomi-sec/PoC-in-GitHubunknown
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
DarkFunct/TK-CVE-RepoPython
TK-CVE-Repo
striga-ai/CVE-2026-23918Python
Double-free in Apache httpd mod_http2 stream cleanup leading to pre-auth RCE.
xeloxa/CVE-2026-23918-Apache-H2-PoCPython
Proof-of-Concept exploit for CVE-2026-23918 (Apache mod_http2 double-free). Features multi-mode DoS (Rapid-RST, Slow-Drip) and passive RCE/vulnerability detection for Apache 2.4.66…
alt3kx/alt3kx.github.ioHTML
XZ1r0/cve-2026-poc-collectionPython
CVE-2026 PoC Collection - 128 PoCs covering 84 CVEs
rhasan-com/CVE-2026-23918Python
Apache HTTP/2 double-free vulnerability PoC (CVE-2026-23918)
qassam-315/CVE-2026-23918-Elite-AuditorPython
Elite reconnaissance script for auditing Apache's HTTP/2 stack against memory corruption (CVE-2026-23918). Features ALPN protocol forcing and monochrome dashboard intelligence. Bui…