vulnerability
Oracle Linux: CVE-2026-33526: ELSA-2026-6301: squid security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Mar 26, 2026 | Apr 2, 2026 | May 21, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Mar 26, 2026
Added
Apr 2, 2026
Modified
May 21, 2026
Description
A flaw was found in Squid. A remote attacker can exploit a heap Use-After-Free vulnerability when handling ICP (Internet Cache Protocol) traffic. This allows them to perform a reliable and repeatable Denial of Service (DoS) attack, making the Squid service unavailable. This attack is limited to deployments where ICP support is explicitly enabled.
Solutions
oracle-linux-upgrade-libecaporacle-linux-upgrade-libecap-develoracle-linux-upgrade-squidoracle-linux-upgrade-squid-migration-scriptoracle-linux-upgrade-squid-sysvinit
Rapid7 Labs
2026 Global Threat Landscape Report
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