UnratedFix available

UBUNTU-CVE-2026-94571

Type: advisorySource: OSV1 source record

In OpenStack Octavia before 18.0.1, the Amphora provider driver did not reject control characters in the L7 policy redirect_url and redirect_prefix fields. The RFC 3986 URL validator percent-encodes control characters before validating, and thus newlines passed structural checks, but Octavia stored and wrote the raw unencoded value directly into the HAProxy configuration generated on the amphora. An authenticated project member who owns a load balancer can therefore inject arbitrary HAProxy directives through a REDIRECT_TO_URL L7 policy. Only deployments using the Amphora provider are affected.

Announced 21 Sept 2026Group revision 1

Original source ↗

UBUNTU-CVE-2026-94571

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:UBUNTU-CVE-2026-94571

octavia

Source reference: /affected/0/package/name

Affected versions: 5.0.0-0ubuntu1
Source reference: /affected/0/versions
6.0.0~b1~git2019121614.45cb1e4e-0ubuntu1
Source reference: /affected/0/versions
6.0.0~b2~git2020020614.005cd1e6-0ubuntu1
Source reference: /affected/0/versions
6.0.0~b2~git2020020614.005cd1e6-0ubuntu2
Source reference: /affected/0/versions
6.0.0~b3~git2020032609.73fca169-0ubuntu1
Source reference: /affected/0/versions
6.0.0~b3~git2020041014.771a5d87-0ubuntu1
Source reference: /affected/0/versions
6.0.0-0ubuntu0.20.04.1
Source reference: /affected/0/versions
6.0.0-0ubuntu0.20.04.2
Source reference: /affected/0/versions
6.1.0-0ubuntu1
Source reference: /affected/0/versions
6.2.0-0ubuntu1
Source reference: /affected/0/versions
6.2.1-0ubuntu1
Source reference: /affected/0/versions
6.2.1-0ubuntu2
Source reference: /affected/0/versions
6.2.2-0ubuntu1
Source reference: /affected/0/versions
6.2.2-0ubuntu1.1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

octavia

Source reference: /affected/1/package/name

Affected versions: 1:9.0.0-0ubuntu1
Source reference: /affected/1/versions
1:9.0.0+git2021120816.ab3c3ef7-0ubuntu1
Source reference: /affected/1/versions
1:9.0.1+git2022011217.27e5b27d-0ubuntu1
Source reference: /affected/1/versions
1:9.0.1+git2022030314.328ffbab-0ubuntu1
Source reference: /affected/1/versions
1:10.0.0-0ubuntu1
Source reference: /affected/1/versions
1:10.1.0-0ubuntu1
Source reference: /affected/1/versions
1:10.1.1-0ubuntu1
Source reference: /affected/1/versions
1:10.1.1-0ubuntu1.1
Source reference: /affected/1/versions
1:10.1.1-0ubuntu1.2
Source reference: /affected/1/versions
1:10.1.1-0ubuntu1.3
Source reference: /affected/1/versions
1:10.1.1-0ubuntu1.4
Source reference: /affected/1/versions
Fixed versions: 1:10.1.1-0ubuntu1.5
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

octavia

Source reference: /affected/2/package/name

Affected versions: 1:13.0.0-0ubuntu1
Source reference: /affected/2/versions
1:13.0.0+git2024011917.5750e451-0ubuntu1
Source reference: /affected/2/versions
1:14.0.0~rc1-0ubuntu1
Source reference: /affected/2/versions
1:14.0.0-0ubuntu1
Source reference: /affected/2/versions
1:14.0.0-0ubuntu1.1
Source reference: /affected/2/versions
1:14.0.0-0ubuntu1.2
Source reference: /affected/2/versions
1:14.0.0-0ubuntu1.3
Source reference: /affected/2/versions
1:14.0.0-0ubuntu1.4
Source reference: /affected/2/versions
1:14.0.0-0ubuntu1.5
Source reference: /affected/2/versions
Fixed versions: 1:14.0.0-0ubuntu1.6
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

octavia

Source reference: /affected/3/package/name

Affected versions: 1:17.0.0-0ubuntu1
Source reference: /affected/3/versions
1:17.0.0+git20260116.e805a93-0ubuntu1
Source reference: /affected/3/versions
1:18.0.0~rc1-0ubuntu2
Source reference: /affected/3/versions
1:18.0.0-0ubuntu1
Source reference: /affected/3/versions
1:18.0.0-0ubuntu2
Source reference: /affected/3/versions
Fixed versions: 1:18.0.0-0ubuntu2.1
Source reference: /affected/3/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"
          }
        ]
      }
    ],
    "package": {
      "name": "octavia",
      "purl": "pkg:deb/ubuntu/octavia?arch=source&distro=focal",
      "ecosystem": "Ubuntu:20.04:LTS"
    },
    "versions": [
      "5.0.0-0ubuntu1",
      "6.0.0~b1~git2019121614.45cb1e4e-0ubuntu1",
      "6.0.0~b2~git2020020614.005cd1e6-0ubuntu1",
      "6.0.0~b2~git2020020614.005cd1e6-0ubuntu2",
      "6.0.0~b3~git2020032609.73fca169-0ubuntu1",
      "6.0.0~b3~git2020041014.771a5d87-0ubuntu1",
      "6.0.0-0ubuntu0.20.04.1",
      "6.0.0-0ubuntu0.20.04.2",
      "6.1.0-0ubuntu1",
      "6.2.0-0ubuntu1",
      "6.2.1-0ubuntu1",
      "6.2.1-0ubuntu2",
      "6.2.2-0ubuntu1",
      "6.2.2-0ubuntu1.1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94571.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "amphora-agent",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "octavia-api",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "octavia-common",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "octavia-driver-agent",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "octavia-health-manager",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "octavia-housekeeping",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "octavia-worker",
          "binary_version": "6.2.2-0ubuntu1.1"
        },
        {
          "binary_name": "python3-octavia",
          "binary_version": "6.2.2-0ubuntu1.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:10.1.1-0ubuntu1.5"
          }
        ]
      }
    ],
    "package": {
      "name": "octavia",
      "purl": "pkg:deb/ubuntu/octavia?arch=source&distro=jammy",
      "ecosystem": "Ubuntu:22.04:LTS"
    },
    "versions": [
      "1:9.0.0-0ubuntu1",
      "1:9.0.0+git2021120816.ab3c3ef7-0ubuntu1",
      "1:9.0.1+git2022011217.27e5b27d-0ubuntu1",
      "1:9.0.1+git2022030314.328ffbab-0ubuntu1",
      "1:10.0.0-0ubuntu1",
      "1:10.1.0-0ubuntu1",
      "1:10.1.1-0ubuntu1",
      "1:10.1.1-0ubuntu1.1",
      "1:10.1.1-0ubuntu1.2",
      "1:10.1.1-0ubuntu1.3",
      "1:10.1.1-0ubuntu1.4"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94571.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "amphora-agent",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "octavia-api",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "octavia-common",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "octavia-driver-agent",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "octavia-health-manager",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "octavia-housekeeping",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "octavia-worker",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        },
        {
          "binary_name": "python3-octavia",
          "binary_version": "1:10.1.1-0ubuntu1.5"
        }
      ],
      "availability": "No subscription required"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:14.0.0-0ubuntu1.6"
          }
        ]
      }
    ],
    "package": {
      "name": "octavia",
      "purl": "pkg:deb/ubuntu/octavia?arch=source&distro=noble",
      "ecosystem": "Ubuntu:24.04:LTS"
    },
    "versions": [
      "1:13.0.0-0ubuntu1",
      "1:13.0.0+git2024011917.5750e451-0ubuntu1",
      "1:14.0.0~rc1-0ubuntu1",
      "1:14.0.0-0ubuntu1",
      "1:14.0.0-0ubuntu1.1",
      "1:14.0.0-0ubuntu1.2",
      "1:14.0.0-0ubuntu1.3",
      "1:14.0.0-0ubuntu1.4",
      "1:14.0.0-0ubuntu1.5"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94571.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "amphora-agent",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "octavia-api",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "octavia-common",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "octavia-driver-agent",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "octavia-health-manager",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "octavia-housekeeping",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "octavia-worker",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        },
        {
          "binary_name": "python3-octavia",
          "binary_version": "1:14.0.0-0ubuntu1.6"
        }
      ],
      "availability": "No subscription required"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:18.0.0-0ubuntu2.1"
          }
        ]
      }
    ],
    "package": {
      "name": "octavia",
      "purl": "pkg:deb/ubuntu/octavia?arch=source&distro=resolute",
      "ecosystem": "Ubuntu:26.04:LTS"
    },
    "versions": [
      "1:17.0.0-0ubuntu1",
      "1:17.0.0+git20260116.e805a93-0ubuntu1",
      "1:18.0.0~rc1-0ubuntu2",
      "1:18.0.0-0ubuntu1",
      "1:18.0.0-0ubuntu2"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94571.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "amphora-agent",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "octavia-api",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "octavia-common",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "octavia-driver-agent",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "octavia-health-manager",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "octavia-housekeeping",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "octavia-worker",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        },
        {
          "binary_name": "python3-octavia",
          "binary_version": "1:18.0.0-0ubuntu2.1"
        }
      ],
      "availability": "No subscription required"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #14193 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 00:37:41 GMT
Publisher date: Mon, 21 Sep 2026 21:17:00 GMT

Read the original announcement

Revision history

25 Oct 2026UBUNTU-CVE-2026-94571 · Revision 1Source updated