USN-8208-1

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Source
https://ubuntu.com/security/notices/USN-8208-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8208-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8208-1
Upstream
Related
Published
2026-04-27T12:04:02Z
Modified
2026-05-20T16:04:02.440636859Z
Summary
haproxy vulnerability
Details

Martino Spagnuolo discovered that HAProxy did not check received body lengths in the HTTP/3 parser. A remote attacker could possibly use this issue to perform a request smuggling attack and obtain sensitive information.

References

Affected packages

Ubuntu:24.04:LTS / haproxy

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.8.16-0ubuntu0.24.04.2

Affected versions

2.*
2.6.15-1ubuntu2
2.8.5-1ubuntu1
2.8.5-1ubuntu2
2.8.5-1ubuntu3
2.8.5-1ubuntu3.1
2.8.5-1ubuntu3.2
2.8.5-1ubuntu3.3
2.8.5-1ubuntu3.4
2.8.15-0ubuntu0.24.04.1
2.8.16-0ubuntu0.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "haproxy",
            "binary_version": "2.8.16-0ubuntu0.24.04.2"
        },
        {
            "binary_name": "vim-haproxy",
            "binary_version": "2.8.16-0ubuntu0.24.04.2"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-33555",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8208-1.json"

Ubuntu:25.10 / haproxy

Package

Name
haproxy
Purl
pkg:deb/ubuntu/haproxy?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.12-0ubuntu0.25.10.4

Affected versions

3.*
3.0.8-1ubuntu1
3.0.8-1ubuntu1.1
3.0.10-1ubuntu1
3.0.10-1ubuntu2
3.0.10-1ubuntu3
3.0.12-0ubuntu0.25.10.1
3.0.12-0ubuntu0.25.10.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "haproxy",
            "binary_version": "3.0.12-0ubuntu0.25.10.4"
        },
        {
            "binary_name": "vim-haproxy",
            "binary_version": "3.0.12-0ubuntu0.25.10.4"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-33555",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8208-1.json"

Ubuntu:26.04:LTS / haproxy

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2.9-1ubuntu2.1

Affected versions

3.*
3.0.10-1ubuntu3
3.2.9-1ubuntu1
3.2.9-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "haproxy",
            "binary_version": "3.2.9-1ubuntu2.1"
        },
        {
            "binary_name": "vim-haproxy",
            "binary_version": "3.2.9-1ubuntu2.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-33555",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8208-1.json"