Fiche vulnérabilité
CVE-2026-33526 : faille élevée squid-cache squid (CVSS 7.5)
Description
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.
En bref
- Sévérité
- Élevée (CVSS 7.5)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 26 mars 2026
- Dernière mise à jour
- 15 juil. 2026
Produits concernés
- squid-cache squid
Références
- Fiche CVE-2026-33526 sur le NVD (NIST)
- github.com/squid…
- github.com/squid…
- openwall.com/lists/oss-security/2026/03/25/2
- access.redhat.com/errata/RHSA-2026:10255
- access.redhat.com/errata/RHSA-2026:10256
- access.redhat.com/errata/RHSA-2026:10257
- access.redhat.com/errata/RHSA-2026:11901
- access.redhat.com/errata/RHSA-2026:20564
- access.redhat.com/errata/RHSA-2026:20565
- access.redhat.com/errata/RHSA-2026:20580
- access.redhat.com/errata/RHSA-2026:6301
- access.redhat.com/errata/RHSA-2026:8119
- access.redhat.com/errata/RHSA-2026:8317
- access.redhat.com/errata/RHSA-2026:8880
- access.redhat.com/errata/RHSA-2026:9220