CVE-2026-49975highCWE-409 CWE-789

CVE-2026-49975: fallo de gravedad alta en Apache HTTP Server

Apache HTTP Server: mod_http2 denial of service

Publicada el 08 jun 2026 · Actualizada el 19 ago 2026

Seguir esta CVE + Monitorear Apache HTTP Server + Monitorear apache2

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 7.5epss 33%

de la publicación al armael mismo día

Publicada en NVD8 jun

1ª PoC3 jun

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

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

Productos afectados

Apache Software Foundation · Apache HTTP Server

PoCs públicas encontradas — 14

githubgithub.com/mrx-arafat/CVE-2026-49975-POC★ 29 cve_referencegithub.com/EQSTLab/CVE-2026-49975★ 14 githubgithub.com/fevar54/Proof-of-Concept-POC---CVE-2026-49975-HTTP-2-Bomb-★ 6 githubgithub.com/LSG-PolarBear/CVE-2026-49975★ 6 githubgithub.com/obrige/http2-bomb★ 4 githubgithub.com/adminlove520/http2-bomb-detector★ 3 githubgithub.com/LiaoZiqi-GZFLS/CVE-2026-49975★ 3 githubgithub.com/razureink/cve-2026-49975-http2bomb_reproduction★ 2 githubgithub.com/mindcodings/http2-bomb-detector★ 2 githubgithub.com/renzi25031469/CVE-2026-49975-HTTP-2-Bomb★ 2 githubgithub.com/minc-nice-100/http2-bomb-analysis-paper★ 1 githubgithub.com/Manisso/http2-bomb★ 0 githubgithub.com/wlor0623/http2-bomb-detector★ 0 githubgithub.com/0xc03307b/CVE-2026-49975★ 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%KEV CVE-2021-41773HIGHPath traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49EPSS 100.0%KEV CVE-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%KEV CVE-2024-38475CRITICALApache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.EPSS 100.0%KEV CVE-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