CVE-2026-32748 (GCVE-0-2026-32748)
Vulnerability from cvelistv5
Published
2026-03-26 00:11
Modified
2026-03-26 15:02
Severity ?
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
CWE
  • CWE-413 - Improper Resource Locking
  • CWE-416 - Use After Free
  • CWE-826 - Premature Release of Resource During Expected Lifetime
Summary
Squid is a caching proxy for the Web. Prior to version 7.5, due to premature release of resource during expected lifetime and heap Use-After-Free bugs, 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. This bug is fixed in Squid version 7.5.
References
Impacted products
Vendor Product Version
squid-cache squid Version: < 7.5
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