High [CVE-2026-32748] Denial of Service via crafted ICP traffic
This high-severity Red Hat Linux advisory covers CVE-2026-32748 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support.
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Summary
Denial of Service via crafted ICP traffic. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-826. Affected package(s): squid, squid:4.
Resolved in Red Hat advisory RHSA-2026:8880 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 9 more.
- squid-7:3.5.20-17.el7_9.16
- squid-7:5.2-1.el9_0.10
- squid-7:5.5-22.el9_7.4
- squid-7:5.5-19.el9_6.3
- squid-7:6.10-6.el10_1.3
- squid-7:5.5-5.el9_2.11
- squid:4-8040020260514123440.522a0ee4
- squid:4-8080020260514105733.63b34585
- squid:4-8060020260518090356.ad008a3a
- squid-7:5.5-13.el9_4.5
- squid-7:6.10-5.el10_0.2
- squid:4-8100020260408092701.489197e6
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:8880
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:8880 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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