Squid Cache Security Vulnerabilities (CVEs)

Track 10 security vulnerabilities affecting Squid Cache products and software. Get instant email alerts when new CVEs are discovered, automated security monitoring, and patch guidance.

3 Critical
6 High
1 Medium
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CVE-2025-62168 10.0

Squid caching proxy versions before 7.2 fail to properly redact HTTP authentication credentials in error messages, allowing information disclosure. Th...

Oct 17, 2025
CVE-2025-54574 9.3

Squid caching proxy versions 6.3 and below contain a heap buffer overflow vulnerability in URN processing that could allow remote attackers to execute...

Aug 1, 2025
CVE-2024-45802 7.5

This vulnerability in Squid proxy allows trusted servers to cause denial of service against all clients using the proxy through resource management fl...

Oct 28, 2024
CVE-2024-37894 6.3

Squid caching proxy versions 6.0.1 through 6.9 and 5.0.5 through 5.9 are vulnerable to memory corruption due to an out-of-bounds write error when assi...

Jun 25, 2024
CVE-2024-25111 8.6

CVE-2024-25111 is an uncontrolled recursion vulnerability in Squid's HTTP chunked decoder that allows remote attackers to cause denial of service by s...

Mar 6, 2024
CVE-2023-50269 8.6

Squid caching proxy versions 2.6 through 6.5 contain an uncontrolled recursion vulnerability in HTTP request parsing when the follow_x_forwarded_for f...

Dec 14, 2023
CVE-2023-49286 8.6

Squid caching proxy versions before 6.5 contain an incorrect check of function return value bug in helper process management that allows denial of ser...

Dec 4, 2023
CVE-2023-46848 8.6

Squid proxy server is vulnerable to a denial-of-service attack where remote attackers can crash the service by sending specially crafted ftp:// URLs i...

Nov 3, 2023
CVE-2023-5824 7.5

A vulnerability in Squid proxy server allows cached HTTP response headers to exceed configured size limits, causing worker process stalls or crashes w...

Nov 3, 2023
CVE-2023-46846 9.3

CVE-2023-46846 is an HTTP request smuggling vulnerability in Squid proxy due to lenient chunked decoder handling. It allows attackers to bypass securi...

Nov 3, 2023

Why Monitor Squid Cache Security Vulnerabilities?

Real-time CVE tracking: Our automated system monitors 10+ known vulnerabilities affecting Squid Cache products and software packages. Stay ahead of emerging threats with instant email notifications when new security issues are discovered.

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