CVE catalog

CVE-2025-62168

Squid vulnerability

Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.

Severity: Critical · CVSS 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Published: Oct 16, 2025, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 63.36% · Oct 27, 2026

Projects and upstream resources

[squid][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "squid",
      "status": "fixed",
      "release": "sid",
      "version": "7.7-1"
    },
    {
      "name": "squid",
      "status": "fixed",
      "release": "forky",
      "version": "7.7-1"
    },
    {
      "name": "squid",
      "status": "fixed",
      "release": "trixie",
      "version": "6.13-2+deb13u3"
    },
    {
      "name": "squid",
      "status": "fixed",
      "release": "trixie-security",
      "version": "6.13-2+deb13u2"
    },
    {
      "name": "squid",
      "status": "fixed",
      "release": "bookworm",
      "version": "5.7-2+deb12u5"
    },
    {
      "name": "squid",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "5.7-2+deb12u6"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1118341,
      "name": "squid",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "7.2-1"
    },
    {
      "bug": 1118341,
      "name": "squid",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "7.2-1"
    },
    {
      "bug": 1118341,
      "name": "squid",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "6.13-2+deb13u1"
    },
    {
      "bug": 1118341,
      "name": "squid",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "5.7-2+deb12u4"
    }
  ],
  "distribution_packages": [
    {
      "name": "squid",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "6.13-0ubuntu0.24.04.3"
    },
    {
      "name": "squid-cgi",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "6.13-0ubuntu0.24.04.3"
    },
    {
      "name": "squid-common",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "6.13-0ubuntu0.24.04.3"
    },
    {
      "name": "squid-openssl",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "6.13-0ubuntu0.24.04.3"
    },
    {
      "name": "squid-purge",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "6.13-0ubuntu0.24.04.3"
    },
    {
      "name": "squidclient",
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      "release": "noble",
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      "fixed_version": "6.13-0ubuntu0.24.04.3"
    },
    {
      "name": "squid",
      "ranges": [
        {
          "fixed": "7.2",
          "introduced": "",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "7.2",
      "provider_record_id": "NVD-CVE-2025-62168"
    },
    {
      "name": "squid",
      "distro": "alpine",
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        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "7.3-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "7.3-r0",
      "provider_record_id": "ALPINE-CVE-2025-62168"
    },
    {
      "name": "squid",
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        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "7.3-r0",
      "provider_record_id": "ALPINE-CVE-2025-62168"
    },
    {
      "name": "squid3",
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      "ranges": [
        {
          "type": "ECOSYSTEM",
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            {
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            }
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        }
      ],
      "release": "pro",
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        "3.5.27-1ubuntu1.13",
        "3.5.27-1ubuntu1.14",
        "3.5.27-1ubuntu1.14+esm1",
        "3.5.27-1ubuntu1.14+esm2",
        "3.5.27-1ubuntu1.14+esm3"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.5.27-1ubuntu1.14+esm4",
      "provider_record_id": "USN-7845-1"
    },
    {
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      ],
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      "provider_record_id": "USN-7845-1"
    },
    {
      "name": "squid",
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          ]
        }
      ],
      "release": "22.04",
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    },
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            }
          ]
        }
      ],
      "release": "24.04",
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        "6.5-1ubuntu1",
        "6.5-1ubuntu2",
        "6.5-1ubuntu3",
        "6.6-1ubuntu4",
        "6.6-1ubuntu5",
        "6.6-1ubuntu5.1",
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        "6.13-0ubuntu0.24.04.1",
        "6.13-0ubuntu0.24.04.2"
      ],
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    },
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        "3.5.27-1ubuntu1.5",
        "3.5.27-1ubuntu1.6",
        "3.5.27-1ubuntu1.7",
        "3.5.27-1ubuntu1.8",
        "3.5.27-1ubuntu1.9",
        "3.5.27-1ubuntu1.10",
        "3.5.27-1ubuntu1.11",
        "3.5.27-1ubuntu1.12",
        "3.5.27-1ubuntu1.13",
        "3.5.27-1ubuntu1.14",
        "3.5.27-1ubuntu1.14+esm1",
        "3.5.27-1ubuntu1.14+esm2",
        "3.5.27-1ubuntu1.14+esm3"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.5.27-1ubuntu1.14+esm4",
      "provider_record_id": "UBUNTU-CVE-2025-62168"
    },
    {
      "name": "squid",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.10-1ubuntu1.13+esm1"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "4.8-1ubuntu2",
        "4.8-1ubuntu3",
        "4.9-2ubuntu1",
        "4.9-2ubuntu2",
        "4.9-2ubuntu3",
        "4.9-2ubuntu4",
        "4.10-1ubuntu1",
        "4.10-1ubuntu1.1",
        "4.10-1ubuntu1.2",
        "4.10-1ubuntu1.3",
        "4.10-1ubuntu1.4",
        "4.10-1ubuntu1.5",
        "4.10-1ubuntu1.6",
        "4.10-1ubuntu1.7",
        "4.10-1ubuntu1.8",
        "4.10-1ubuntu1.9",
        "4.10-1ubuntu1.10",
        "4.10-1ubuntu1.11",
        "4.10-1ubuntu1.12",
        "4.10-1ubuntu1.13"
      ],
      "ecosystem": "deb",
      "fixed_version": "4.10-1ubuntu1.13+esm1",
      "provider_record_id": "UBUNTU-CVE-2025-62168"
    },
    {
      "name": "squid",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.9-0ubuntu0.22.04.4"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "4.13-10ubuntu5",
        "5.2-1ubuntu1",
        "5.2-1ubuntu3",
        "5.2-1ubuntu4",
        "5.2-1ubuntu4.1",
        "5.2-1ubuntu4.2",
        "5.2-1ubuntu4.3",
        "5.7-0ubuntu0.22.04.1",
        "5.7-0ubuntu0.22.04.2",
        "5.7-0ubuntu0.22.04.3",
        "5.7-0ubuntu0.22.04.4",
        "5.9-0ubuntu0.22.04.1",
        "5.9-0ubuntu0.22.04.2",
        "5.9-0ubuntu0.22.04.3"
      ],
      "ecosystem": "deb",
      "fixed_version": "5.9-0ubuntu0.22.04.4",
      "provider_record_id": "UBUNTU-CVE-2025-62168"
    },
    {
      "name": "squid",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.13-0ubuntu0.24.04.3"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "6.1-2ubuntu1",
        "6.1-2ubuntu2",
        "6.5-1ubuntu1",
        "6.5-1ubuntu2",
        "6.5-1ubuntu3",
        "6.6-1ubuntu4",
        "6.6-1ubuntu5",
        "6.6-1ubuntu5.1",
        "6.10-0ubuntu0.24.04.1",
        "6.13-0ubuntu0.24.04.1",
        "6.13-0ubuntu0.24.04.2"
      ],
      "ecosystem": "deb",
      "fixed_version": "6.13-0ubuntu0.24.04.3",
      "provider_record_id": "UBUNTU-CVE-2025-62168"
    },
    {
      "name": "squid",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.13-1ubuntu4.1"
            }
          ]
        }
      ],
      "release": "25.10",
      "versions": [
        "6.13-1ubuntu1",
        "6.13-1ubuntu2",
        "6.13-1ubuntu3",
        "6.13-1ubuntu4"
      ],
      "ecosystem": "deb",
      "fixed_version": "6.13-1ubuntu4.1",
      "provider_record_id": "UBUNTU-CVE-2025-62168"
    }
  ]
}

[Debian bug #1118341]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[squid]Unknown
Details (4)
- 5.7-2+deb12u5 · amd64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u5 · arm64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · amd64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · arm64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
[squid-cgi]Unknown
Source package: [squid]
Details (4)
- 5.7-2+deb12u5 · amd64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u5 · arm64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · amd64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · arm64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
[squidclient]Unknown
Source package: [squid]
Details (4)
- 5.7-2+deb12u5 · amd64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u5 · arm64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · amd64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · arm64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
[squid-common]Unknown
Source package: [squid]
Details (4)
- 5.7-2+deb12u5 · all · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u5 · all · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · all · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · all · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
[squid-openssl]Unknown
Source package: [squid]
Details (4)
- 5.7-2+deb12u5 · amd64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u5 · arm64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · amd64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · arm64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
[squid-purge]Unknown
Source package: [squid]
Details (4)
- 5.7-2+deb12u5 · amd64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u5 · arm64 · bookworm
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · amd64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12
- 5.7-2+deb12u6 · arm64 · bookworm-security
  Fixed · Fixed: 5.7-2+deb12u4
  usn · squid · debian · bookworm; usn · squid · debian · 12

[Debian 13 (Trixie)]

[squid]Unknown
Details (4)
- 6.13-2+deb13u2 · amd64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · amd64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
[squid-cgi]Unknown
Source package: [squid]
Details (4)
- 6.13-2+deb13u2 · amd64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · amd64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
[squidclient]Unknown
Source package: [squid]
Details (4)
- 6.13-2+deb13u2 · amd64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · amd64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
[squid-common]Unknown
Source package: [squid]
Details (4)
- 6.13-2+deb13u2 · all · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · all · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · all · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · all · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
[squid-openssl]Unknown
Source package: [squid]
Details (4)
- 6.13-2+deb13u2 · amd64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · amd64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
[squid-purge]Unknown
Source package: [squid]
Details (4)
- 6.13-2+deb13u2 · amd64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · amd64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13
- 6.13-2+deb13u2 · arm64 · trixie-security
  Fixed · Fixed: 6.13-2+deb13u1
  usn · squid · debian · 13

[openSUSE Tumbleweed]

[squid]Unknown
Source package: [squid]
Details (1)
- 7.6-1.3 · x86_64 · tumbleweed
  Fixed · Fixed: 7.3-1.1
  usn · squid · opensuse · tumbleweed

Observed: Oct 27, 2026, 11:27:29 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]