UBUNTU-CVE-2026-71191

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Source
https://ubuntu.com/security/CVE-2026-71191
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-71191
Upstream
Published
2026-08-05T06:16:00Z
Modified
2026-08-06T03:11:26.011737685Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In OpenStack Swift through 2.38.0, S3API middleware does not enforce that semantic x-amz-* headers are covered by the SigV4 signature on presigned URL requests. An attacker who obtains a presigned PUT URL can inject an unsigned X-Amz-Copy-Source header, causing Swift to perform a server-side copy from an arbitrary source object using the signer's authorization context. The attacker can read any object the signer has access to, provided the target projectid, container name, and object name are known. This affects all deployments using the default s3acl=false configuration.

References

Affected packages

Ubuntu:16.04:LTS
swift

Package

Name
swift
Purl
pkg:deb/ubuntu/swift?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.5.0-0ubuntu1
2.7.0-0ubuntu2
2.7.0-0ubuntu2.1
2.7.1-0ubuntu1
2.7.1-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.7.1-0ubuntu2",
            "binary_name": "python-swift"
        },
        {
            "binary_version": "2.7.1-0ubuntu2",
            "binary_name": "swift"
        },
        {
            "binary_name": "swift-account",
            "binary_version": "2.7.1-0ubuntu2"
        },
        {
            "binary_version": "2.7.1-0ubuntu2",
            "binary_name": "swift-container"
        },
        {
            "binary_name": "swift-object",
            "binary_version": "2.7.1-0ubuntu2"
        },
        {
            "binary_name": "swift-object-expirer",
            "binary_version": "2.7.1-0ubuntu2"
        },
        {
            "binary_name": "swift-proxy",
            "binary_version": "2.7.1-0ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json"
Ubuntu:18.04:LTS
swift

Package

Name
swift
Purl
pkg:deb/ubuntu/swift?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.15.1-0ubuntu3
2.16.0-0ubuntu1
2.16.0-0ubuntu2
2.17.0-0ubuntu1
2.17.1-0ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-swift",
            "binary_version": "2.17.1-0ubuntu1"
        },
        {
            "binary_name": "swift",
            "binary_version": "2.17.1-0ubuntu1"
        },
        {
            "binary_name": "swift-account",
            "binary_version": "2.17.1-0ubuntu1"
        },
        {
            "binary_version": "2.17.1-0ubuntu1",
            "binary_name": "swift-container"
        },
        {
            "binary_version": "2.17.1-0ubuntu1",
            "binary_name": "swift-object"
        },
        {
            "binary_name": "swift-object-expirer",
            "binary_version": "2.17.1-0ubuntu1"
        },
        {
            "binary_name": "swift-proxy",
            "binary_version": "2.17.1-0ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json"
Ubuntu:20.04:LTS
swift

Package

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

Affected ranges

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

Affected versions

2.*
2.23.0-0ubuntu1
2.23.1-0ubuntu1
2.24.0~git2019121715.e890b0f0f-0ubuntu1
2.24.0-0ubuntu1
2.24.1~git2020032711.712bf3c9f-0ubuntu2
2.24.1~git2020041316.a495f1e32-0ubuntu1
2.25.0-0ubuntu0.20.04.1
2.25.1-0ubuntu1
2.25.2-0ubuntu1
2.25.2-0ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.25.2-0ubuntu1.1",
            "binary_name": "python3-swift"
        },
        {
            "binary_name": "swift",
            "binary_version": "2.25.2-0ubuntu1.1"
        },
        {
            "binary_version": "2.25.2-0ubuntu1.1",
            "binary_name": "swift-account"
        },
        {
            "binary_version": "2.25.2-0ubuntu1.1",
            "binary_name": "swift-container"
        },
        {
            "binary_name": "swift-object",
            "binary_version": "2.25.2-0ubuntu1.1"
        },
        {
            "binary_name": "swift-object-expirer",
            "binary_version": "2.25.2-0ubuntu1.1"
        },
        {
            "binary_name": "swift-proxy",
            "binary_version": "2.25.2-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json"
Ubuntu:22.04:LTS
swift

Package

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

Affected ranges

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

Affected versions

2.*
2.28.0+git2021090911.5d52afbe4-0ubuntu1
2.28.0+git2021120815.1859f2e16-0ubuntu1
2.28.0+git2021121320.876377435-0ubuntu1
2.28.0+git2022011309.32da73f5c-0ubuntu1
2.29.0+git2022030314.3ff3076ce-0ubuntu1
2.29.0+git2022030314.3ff3076ce-0ubuntu2
2.29.1-0ubuntu1
2.29.2-0ubuntu1
2.29.2-0ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.29.2-0ubuntu1.1",
            "binary_name": "python3-swift"
        },
        {
            "binary_name": "swift",
            "binary_version": "2.29.2-0ubuntu1.1"
        },
        {
            "binary_version": "2.29.2-0ubuntu1.1",
            "binary_name": "swift-account"
        },
        {
            "binary_name": "swift-container",
            "binary_version": "2.29.2-0ubuntu1.1"
        },
        {
            "binary_name": "swift-object",
            "binary_version": "2.29.2-0ubuntu1.1"
        },
        {
            "binary_name": "swift-object-expirer",
            "binary_version": "2.29.2-0ubuntu1.1"
        },
        {
            "binary_name": "swift-proxy",
            "binary_version": "2.29.2-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json"
Ubuntu:24.04:LTS
swift

Package

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

Affected ranges

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

Affected versions

2.*
2.32.0+git2023090714.8ce961ed-0ubuntu1
2.32.0+git2024021508.3aba22fd-0ubuntu1
2.32.0+git2024030809.4135133a-0ubuntu1
2.33.0-0ubuntu1
2.33.0-0ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.33.0-0ubuntu1.1",
            "binary_name": "python3-swift"
        },
        {
            "binary_name": "swift",
            "binary_version": "2.33.0-0ubuntu1.1"
        },
        {
            "binary_version": "2.33.0-0ubuntu1.1",
            "binary_name": "swift-account"
        },
        {
            "binary_name": "swift-container",
            "binary_version": "2.33.0-0ubuntu1.1"
        },
        {
            "binary_name": "swift-object",
            "binary_version": "2.33.0-0ubuntu1.1"
        },
        {
            "binary_name": "swift-object-expirer",
            "binary_version": "2.33.0-0ubuntu1.1"
        },
        {
            "binary_name": "swift-proxy",
            "binary_version": "2.33.0-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json"
Ubuntu:26.04:LTS
swift

Package

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

Affected ranges

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

Affected versions

2.*
2.36.0-0ubuntu1
2.37.0-0ubuntu1
2.37.1-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "python3-swift"
        },
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "swift"
        },
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "swift-account"
        },
        {
            "binary_name": "swift-container",
            "binary_version": "2.37.1-0ubuntu2"
        },
        {
            "binary_name": "swift-object",
            "binary_version": "2.37.1-0ubuntu2"
        },
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "swift-object-expirer"
        },
        {
            "binary_name": "swift-proxy",
            "binary_version": "2.37.1-0ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71191.json"