HighFix available

Red Hat Security Advisory: squid:4 security update

Type: advisorySource: OSV1 source record

Announced 26 May 2026Group revision 1

RHSA-2026:20565

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:RHSA-2026:20565

libecap

Source reference: /affected/0/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

libecap-debuginfo

Source reference: /affected/1/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

libecap-debugsource

Source reference: /affected/2/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

libecap-devel

Source reference: /affected/3/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/3/ranges
Prerequisites: Not stated in this record

squid

Source reference: /affected/4/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/4/ranges
Prerequisites: Not stated in this record

squid-debuginfo

Source reference: /affected/5/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/5/ranges
Prerequisites: Not stated in this record

squid-debugsource

Source reference: /affected/6/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/6/ranges
Prerequisites: Not stated in this record

libecap

Source reference: /affected/7/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/7/ranges
Prerequisites: Not stated in this record

libecap-debuginfo

Source reference: /affected/8/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/8/ranges
Prerequisites: Not stated in this record

libecap-debugsource

Source reference: /affected/9/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/9/ranges
Prerequisites: Not stated in this record

libecap-devel

Source reference: /affected/10/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/10/ranges
Prerequisites: Not stated in this record

squid

Source reference: /affected/11/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/11/ranges
Prerequisites: Not stated in this record

squid-debuginfo

Source reference: /affected/12/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/12/ranges
Prerequisites: Not stated in this record

squid-debugsource

Source reference: /affected/13/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/13/ranges
Prerequisites: Not stated in this record

libecap

Source reference: /affected/14/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/14/ranges
Prerequisites: Not stated in this record

libecap-debuginfo

Source reference: /affected/15/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/15/ranges
Prerequisites: Not stated in this record

libecap-debugsource

Source reference: /affected/16/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/16/ranges
Prerequisites: Not stated in this record

libecap-devel

Source reference: /affected/17/package/name

Affected versions: Not stated in this record
Fixed versions: 0:1.0.1-2.module+el8.1.0+4044+36416a77
Source reference: /affected/17/ranges
Prerequisites: Not stated in this record

squid

Source reference: /affected/18/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/18/ranges
Prerequisites: Not stated in this record

squid-debuginfo

Source reference: /affected/19/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/19/ranges
Prerequisites: Not stated in this record

squid-debugsource

Source reference: /affected/20/package/name

Affected versions: Not stated in this record
Fixed versions: 7:4.15-3.module+el8.6.0+24307+cba8e5bb.9
Source reference: /affected/20/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap",
      "purl": "pkg:rpm/redhat/libecap",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-debuginfo",
      "purl": "pkg:rpm/redhat/libecap-debuginfo",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-debugsource",
      "purl": "pkg:rpm/redhat/libecap-debugsource",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-devel",
      "purl": "pkg:rpm/redhat/libecap-devel",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid",
      "purl": "pkg:rpm/redhat/squid",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid-debuginfo",
      "purl": "pkg:rpm/redhat/squid-debuginfo",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid-debugsource",
      "purl": "pkg:rpm/redhat/squid-debugsource",
      "ecosystem": "Red Hat:rhel_aus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap",
      "purl": "pkg:rpm/redhat/libecap",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-debuginfo",
      "purl": "pkg:rpm/redhat/libecap-debuginfo",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-debugsource",
      "purl": "pkg:rpm/redhat/libecap-debugsource",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-devel",
      "purl": "pkg:rpm/redhat/libecap-devel",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid",
      "purl": "pkg:rpm/redhat/squid",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid-debuginfo",
      "purl": "pkg:rpm/redhat/squid-debuginfo",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid-debugsource",
      "purl": "pkg:rpm/redhat/squid-debugsource",
      "ecosystem": "Red Hat:rhel_e4s:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap",
      "purl": "pkg:rpm/redhat/libecap",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-debuginfo",
      "purl": "pkg:rpm/redhat/libecap-debuginfo",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-debugsource",
      "purl": "pkg:rpm/redhat/libecap-debugsource",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0:1.0.1-2.module+el8.1.0+4044+36416a77"
          }
        ]
      }
    ],
    "package": {
      "name": "libecap-devel",
      "purl": "pkg:rpm/redhat/libecap-devel",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid",
      "purl": "pkg:rpm/redhat/squid",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid-debuginfo",
      "purl": "pkg:rpm/redhat/squid-debuginfo",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:4.15-3.module+el8.6.0+24307+cba8e5bb.9"
          }
        ]
      }
    ],
    "package": {
      "name": "squid-debugsource",
      "purl": "pkg:rpm/redhat/squid-debugsource",
      "ecosystem": "Red Hat:rhel_tus:8.6::appstream"
    },
    "database_specific": {
      "source": "https://security.access.redhat.com/data/osv/RHSA-2026:20565.json"
    }
  }
]

Related CVEs: CVE-2026-32748
Source reference: /upstream
CVE-2026-33526
Source reference: /upstream

Publisher severity

high

Source reference: /severity/0/score

Event: #73047 · Revision 1
Added to Heist Feed: Mon, 26 Oct 2026 00:21:44 GMT
Publisher date: Tue, 26 May 2026 10:07:30 GMT

Read the original announcement

Revision history

26 Oct 2026RHSA-2026:20565 · Revision 1Source updated