UBUNTU-CVE-2026-94571

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Source
https://ubuntu.com/security/CVE-2026-94571
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94571.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-94571
Upstream
Published
2026-09-22T00:00:00Z
Modified
2026-09-22T22:58:50Z
Severity
  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:20.04:LTS / octavia

Package

Name
octavia
Purl
pkg:deb/ubuntu/octavia?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.0-0ubuntu1
6.*
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

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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94571.json"

Ubuntu:22.04:LTS / octavia

Package

Name
octavia
Purl
pkg:deb/ubuntu/octavia?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:9.*
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.*
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

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "amphora-agent",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "octavia-api",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "octavia-common",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "octavia-driver-agent",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "octavia-health-manager",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "octavia-housekeeping",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "octavia-worker",
            "binary_version":  "1:10.1.1-0ubuntu1.4"
        },
        {
            "binary_name":  "python3-octavia",
            "binary_version":  "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"

Ubuntu:24.04:LTS / octavia

Package

Name
octavia
Purl
pkg:deb/ubuntu/octavia?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:13.*
1:13.0.0-0ubuntu1
1:13.0.0+git2024011917.5750e451-0ubuntu1
1:14.*
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

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "amphora-agent",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "octavia-api",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "octavia-common",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "octavia-driver-agent",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "octavia-health-manager",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "octavia-housekeeping",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "octavia-worker",
            "binary_version":  "1:14.0.0-0ubuntu1.5"
        },
        {
            "binary_name":  "python3-octavia",
            "binary_version":  "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"

Ubuntu:26.04:LTS / octavia

Package

Name
octavia
Purl
pkg:deb/ubuntu/octavia?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:17.*
1:17.0.0-0ubuntu1
1:17.0.0+git20260116.e805a93-0ubuntu1
1:18.*
1:18.0.0~rc1-0ubuntu2
1:18.0.0-0ubuntu1
1:18.0.0-0ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "amphora-agent",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "octavia-api",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "octavia-common",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "octavia-driver-agent",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "octavia-health-manager",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "octavia-housekeeping",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "octavia-worker",
            "binary_version":  "1:18.0.0-0ubuntu2"
        },
        {
            "binary_name":  "python3-octavia",
            "binary_version":  "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"