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OpenAdvisories
Critical RHSA-2026:8317 2 CVEs

Red Hat Security Advisory: squid:4 security update

Published Apr 16, 2026 · Updated Oct 3, 2026

Ecosystem: Red Hat

Fixed packages 7

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::appstream libecap 0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat · RHEL 8 enterprise_linux:8::appstream libecap-debuginfo 0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat · RHEL 8 enterprise_linux:8::appstream libecap-debugsource 0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat · RHEL 8 enterprise_linux:8::appstream libecap-devel 0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat · RHEL 8 enterprise_linux:8::appstream squid 7:4.15-10.module+el8.10.0+24189+04a20c8a.11
Red Hat · RHEL 8 enterprise_linux:8::appstream squid-debuginfo 7:4.15-10.module+el8.10.0+24189+04a20c8a.11
Red Hat · RHEL 8 enterprise_linux:8::appstream squid-debugsource 7:4.15-10.module+el8.10.0+24189+04a20c8a.11

Vulnerabilities 2

  • Critical 9.2
    CVE-2026-33526

    Squid vulnerable to Denial of Service in ICP Request handling

    Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, 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 aga…

    squid-cache squid squid squid3 Debian Ubuntu Azure Linux
  • High 8.7
    CVE-2026-32748

    Squid has Denial of Service in ICP Response handling

    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 t…

    squid-cache squid squid squid3 Debian Ubuntu Azure Linux

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2451574
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2451577
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_8317.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-32748
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-32748
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-32748
  • article
    http://www.openwall.com/lists/oss-security/2026/03/25/3
  • article
    https://github.com/squid-cache/squid/commit/703e07d25ca6fa11f52d20bf0bb879e22ab7481b
  • article
    https://github.com/squid-cache/squid/security/advisories/GHSA-f9p7-3jqg-hhvq
  • report
    https://access.redhat.com/security/cve/CVE-2026-33526
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-33526
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-33526
  • article
    http://www.openwall.com/lists/oss-security/2026/03/25/2
  • article
    https://github.com/squid-cache/squid/commit/8a7d42f9d44befb8fcbbb619505587c8de6a1e91
  • article
    https://github.com/squid-cache/squid/security/advisories/GHSA-hpfx-h48q-gvwg