CVE-2026-33526

HIGH

7.5

Descripcion

Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/26/2026

Ultima modificacion3/31/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

squid-cache:squid

Debilidades (CWE)

CWE-416CWE-826

Referencias

https://github.com/squid-cache/squid/commit/8a7d42f9d44befb8fcbbb619505587c8de6a1e91(security-advisories@github.com)

https://github.com/squid-cache/squid/security/advisories/GHSA-hpfx-h48q-gvwg(security-advisories@github.com)

http://www.openwall.com/lists/oss-security/2026/03/25/2(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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