CVE-2026-28780: fallo crítico en Apache HTTP Server
Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.8epss 1.4%
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server.
If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer.
This issue affects Apache HTTP Server: through 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:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Apache Software Foundation · Apache HTTP ServerCVEs 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-2026:21391https://access.redhat.com/errata/RHSA-2026:21433https://access.redhat.com/errata/RHSA-2026:22140https://access.redhat.com/errata/RHSA-2026:27200https://access.redhat.com/errata/RHSA-2026:27201https://access.redhat.com/errata/RHSA-2026:36373https://access.redhat.com/errata/RHSA-2026:36831https://access.redhat.com/errata/RHSA-2026:36846https://access.redhat.com/errata/RHSA-2026:47046https://access.redhat.com/errata/RHSA-2026:62165https://access.redhat.com/errata/RHSA-2026:66323https://access.redhat.com/errata/RHSA-2026:67152