USN-8821-1

It was discovered that OpenStack Swift incorrectly handled truncated aws-chunked PUT request bodies in its s3api middleware. An authenticated attacker could possibly use this issue to cause OpenStack Swift to use excessive resources, leading to a denial of service.

References

Affected packages

Ubuntu:26.04:LTS / swift

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.37.1-0ubuntu2.1

Affected versions

2.*

2.36.0-0ubuntu1

2.37.0-0ubuntu1

2.37.1-0ubuntu2

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "python3-swift",
            "binary_version":  "2.37.1-0ubuntu2.1"
        },
        {
            "binary_name":  "swift",
            "binary_version":  "2.37.1-0ubuntu2.1"
        },
        {
            "binary_name":  "swift-account",
            "binary_version":  "2.37.1-0ubuntu2.1"
        },
        {
            "binary_name":  "swift-container",
            "binary_version":  "2.37.1-0ubuntu2.1"
        },
        {
            "binary_name":  "swift-object",
            "binary_version":  "2.37.1-0ubuntu2.1"
        },
        {
            "binary_name":  "swift-object-expirer",
            "binary_version":  "2.37.1-0ubuntu2.1"
        },
        {
            "binary_name":  "swift-proxy",
            "binary_version":  "2.37.1-0ubuntu2.1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [
        {
            "id":  "CVE-2026-49017",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:26.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8821-1.json"