UBUNTU-CVE-2026-5440

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Source

https://ubuntu.com/security/CVE-2026-5440

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-5440

Upstream

CVE-2026-5440

Published

2026-04-09T15:16:00Z

Modified

2026-05-20T16:26:41.039651931Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A memory exhaustion vulnerability exists in the HTTP server due to unbounded use of the Content-Length header. The server allocates memory directly based on the attacker supplied header value without enforcing an upper limit. A crafted HTTP request containing an extremely large Content-Length value can trigger excessive memory allocation and server termination, even without sending a request body.

References

Affected packages

Ubuntu:16.04:LTS

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.9.4+dfsg-1

0.9.4+dfsg-2

0.9.5+dfsg-1

1.*

1.0.0+dfsg-1

1.0.0+dfsg-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "orthanc",
            "binary_version": "1.0.0+dfsg-1build1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"

Ubuntu:18.04:LTS

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.0+dfsg-1build1

1.3.0+dfsg-1build2

1.3.1+dfsg-1

1.3.1+dfsg-1build1

1.3.1+dfsg-1build2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "orthanc",
            "binary_version": "1.3.1+dfsg-1build2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"

Ubuntu:20.04:LTS

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.5.7+dfsg-2

1.5.8+dfsg-2

1.5.8+dfsg-2ubuntu2

1.5.8+dfsg-2ubuntu3

1.5.8+dfsg-2ubuntu4

1.5.8+dfsg-2ubuntu5

1.5.8+dfsg-2ubuntu6

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "orthanc",
            "binary_version": "1.5.8+dfsg-2ubuntu6"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"

Ubuntu:22.04:LTS

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.9.2+really1.9.1+dfsg-1

1.9.7+dfsg-3ubuntu1

1.9.7+dfsg-3ubuntu2

1.9.7+dfsg-4

1.9.7+dfsg-5

1.9.7+dfsg-6

1.10.0+dfsg-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "liborthancframework1",
            "binary_version": "1.10.0+dfsg-1"
        },
        {
            "binary_name": "orthanc",
            "binary_version": "1.10.0+dfsg-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"

Ubuntu:24.04:LTS

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.12.1+dfsg-3

1.12.1+dfsg-4

1.12.1+dfsg-4build1

1.12.2+dfsg-1

1.12.2+dfsg-1build3

1.12.2+dfsg-1build4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "liborthancframework1",
            "binary_version": "1.12.2+dfsg-1build4"
        },
        {
            "binary_name": "orthanc",
            "binary_version": "1.12.2+dfsg-1build4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"

Ubuntu:25.10

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.12.6+dfsg-1

1.12.7+dfsg-4

1.12.7+dfsg-4build2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "liborthancframework1",
            "binary_version": "1.12.7+dfsg-4build2"
        },
        {
            "binary_name": "orthanc",
            "binary_version": "1.12.7+dfsg-4build2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"

Ubuntu:26.04:LTS

orthanc

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.12.7+dfsg-4build2

1.12.9+dfsg-2

1.12.10+dfsg-1

1.12.10+dfsg-1build1

1.12.10+dfsg-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "liborthancframework1",
            "binary_version": "1.12.10+dfsg-2"
        },
        {
            "binary_name": "orthanc",
            "binary_version": "1.12.10+dfsg-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5440.json"