CVE-2026-23918: fallo de gravedad alta en Apache HTTP Server
Apache HTTP Server: http2: double free and possible RCE on early reset
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
55Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 8.8epss 50%
de la publicación al arma1 día
Publicada en NVD4 may
1ª PoC+1d
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Apache Software Foundation · Apache HTTP ServerPoCs públicas encontradas — 16
exploitdbwww.exploit-db.com/exploits/52577no verificadogithubgithub.com/striga-ai/CVE-2026-23918★ 32githubgithub.com/xeloxa/CVE-2026-23918-Apache-H2-PoC★ 23githubgithub.com/rhasan-com/CVE-2026-23918★ 8githubgithub.com/qassam-315/CVE-2026-23918-Elite-Auditor★ 6githubgithub.com/12lie20/CVE-2026-23918-test★ 4githubgithub.com/hackervlogofficial/CVE-2026-23918★ 1githubgithub.com/alt3kx/CVE-2026-23918★ 1githubgithub.com/Bencodin/CVE-2026-23918-poc★ 0githubgithub.com/seguridadentrerios/CVE-2026-23918★ 0githubgithub.com/rshosting/Apache-CVE-2026-23918-fix★ 0githubgithub.com/aa022/CVE-2026-23918-Passive-Audit★ 0githubgithub.com/insomnisec/Detections-CVE-2026-23918★ 0githubgithub.com/sibersan/apache_audit_cve-2026-23918★ 0githubgithub.com/gagaltotal/CVE-2026-23918-Double-free-Apache-httpd-mod_http2★ 0githubgithub.com/CYFARE/CVE-2026-23918-Apache-HTTP-Server-DoubleFree-PoC★ 0⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — Apache HTTP Server
En el mismo producto, de las más peligrosas a las menos.
CVE-2021-40438CRITICALmod_proxy SSRFEPSS 100.0%KEVCVE-2021-41773HIGHPath traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49EPSS 100.0%KEVCVE-2021-42013CRITICALPath Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)EPSS 100.0%KEVCVE-2024-38475CRITICALApache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.EPSS 100.0%KEVCVE-2021-44790—Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlierEPSS 96.8%CVE-2017-9798—CVE-2017-9798EPSS 94.7%
Referencias
https://access.redhat.com/errata/RHSA-2026:13938https://access.redhat.com/security/cve/CVE-2026-23918https://bugzilla.redhat.com/show_bug.cgi?id=2465304https://httpd.apache.org/security/vulnerabilities_24.htmlhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23918.jsonhttp://www.openwall.com/lists/oss-security/2026/05/04/19