CVE-2026-32748
HIGH
8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
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.
413
Improper Resource Locking
DraftCommon Consequences
Security Scopes Affected:
Integrity
Availability
Potential Impacts:
Modify Application Data
Dos: Instability
Dos: Crash, Exit, Or Restart
Applicable Platforms
All platforms may be affected
416
Use After Free
StableCommon Consequences
Security Scopes Affected:
Integrity
Availability
Confidentiality
Potential Impacts:
Modify Memory
Dos: Crash, Exit, Or Restart
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages:
C, C++, Memory-Unsafe
826
Premature Release of Resource During Expected Lifetime
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Availability
Integrity
Potential Impacts:
Read Application Data
Read Memory
Dos: Crash, Exit, Or Restart
Execute Unauthorized Code Or Commands
Modify Application Data
Modify Memory
Applicable Platforms
All platforms may be affected
http://www.openwall.com/lists/oss-security/2026/03/25/3
https://github.com/squid-cache/squid/commit/703e07d25ca6fa11f52d20bf0bb879e22ab…
https://github.com/squid-cache/squid/security/advisories/GHSA-f9p7-3jqg-hhvq