UBUNTU-CVE-2026-71190

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Source
https://ubuntu.com/security/CVE-2026-71190
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-71190
Upstream
Published
2026-08-05T06:16:00Z
Modified
2026-08-06T03:11:25.943918328Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to catastrophic backtracking (ReDoS). The "qdtext" pattern (?:[^"]|\.)* allows an unauthenticated remote attacker to send a crafted Accept header that causes exponential CPU consumption in the proxy worker. A payload of 32 backslash-character pairs exceeds 30 seconds of CPU time. No authentication is required. Repeated requests can exhaust all proxy worker threads, resulting in a complete denial of service.

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_version": "2.7.1-0ubuntu2",
            "binary_name": "swift-account"
        },
        {
            "binary_version": "2.7.1-0ubuntu2",
            "binary_name": "swift-container"
        },
        {
            "binary_version": "2.7.1-0ubuntu2",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.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_version": "2.17.1-0ubuntu1",
            "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_name": "swift-container"
        },
        {
            "binary_version": "2.17.1-0ubuntu1",
            "binary_name": "swift-object"
        },
        {
            "binary_version": "2.17.1-0ubuntu1",
            "binary_name": "swift-object-expirer"
        },
        {
            "binary_version": "2.17.1-0ubuntu1",
            "binary_name": "swift-proxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.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_version": "2.25.2-0ubuntu1.1",
            "binary_name": "swift"
        },
        {
            "binary_version": "2.25.2-0ubuntu1.1",
            "binary_name": "swift-account"
        },
        {
            "binary_version": "2.25.2-0ubuntu1.1",
            "binary_name": "swift-container"
        },
        {
            "binary_version": "2.25.2-0ubuntu1.1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.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_version": "2.29.2-0ubuntu1.1",
            "binary_name": "swift"
        },
        {
            "binary_version": "2.29.2-0ubuntu1.1",
            "binary_name": "swift-account"
        },
        {
            "binary_version": "2.29.2-0ubuntu1.1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.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_version": "2.33.0-0ubuntu1.1",
            "binary_name": "swift"
        },
        {
            "binary_version": "2.33.0-0ubuntu1.1",
            "binary_name": "swift-account"
        },
        {
            "binary_version": "2.33.0-0ubuntu1.1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.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_version": "2.37.1-0ubuntu2",
            "binary_name": "swift-container"
        },
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "swift-object"
        },
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "swift-object-expirer"
        },
        {
            "binary_version": "2.37.1-0ubuntu2",
            "binary_name": "swift-proxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71190.json"