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squid-cache

19 known vulnerabilities.

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squid 19
All Critical High Medium Low Exploited only Public exploit

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  • Medium 6.5
    CVE-2026-47729 Public exploit

    Squid: Memory disclosure in FTP gateway

    Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB d…

    squid-cache squid squid squid3 Debian Ubuntu Alpine
  • Medium 5.5
    CVE-2026-50012

    Squid: Memory corruption in cache_digest reply handling

    Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's on-the-wire size may…

    squid-cache squid squid squid3 Debian Ubuntu Alpine
  • Medium 6.9
    CVE-2026-33515

    Squid has issues in ICP message handling

    Squid is a caching proxy for the Web. Prior to version 7.5, due to improper input validation, Squid is vulnerable to out of bounds read when handling ICP traffic. This problem allows a remote attacker to receive small amounts of memory potentially containing …

    squid-cache squid squid squid3 Debian Ubuntu
  • Medium 6.3
    CVE-2024-37894

    Squid vulnerable to heap corruption in ESI assign

    Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Out-of-bounds Write error when assigning ESI variables, Squid is susceptible to a Memory Corruption error. This error can lead to a Denial of Service attack.

    squid-cache squid squid squid3 Debian Ubuntu
  • Medium 5.3
    CVE-2024-25617 EPSS 88%

    Denial of Service in HTTP Header parser in squid proxy

    Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or…

    squid-cache squid squid squid3 Debian Ubuntu
  • Medium 6.5
    CVE-2024-23638 EPSS 60%

    SQUID-2023:11 Denial of Service in Cache Manager

    Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when…

    squid-cache squid squid squid3 Debian Ubuntu