UBUNTU-CVE-2026-7836

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Source

https://ubuntu.com/security/CVE-2026-7836

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-7836

Upstream

CVE-2026-7836

Published

2026-05-21T08:16:00Z

Modified

2026-06-22T09:30:51.544001118Z

Severity

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

Summary

[none]

Details

An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input.

References

Affected packages

Ubuntu:25.10

netatalk

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.2~ds-4

4.2.1~ds-1

4.2.3~ds-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "a2boot",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "atalkd",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "libatalk",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "macipgw",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "netatalk",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "netatalk-tests",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "netatalk-tools",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "papd",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "timelord",
            "binary_version": "4.2.3~ds-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:26.04:LTS

netatalk

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.2.3~ds-1

4.2.3~ds-2

4.2.3~ds-2.1

4.2.3~ds-2.1ubuntu0.1

4.2.3~ds-2.1ubuntu0.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "a2boot",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "atalkd",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "libatalk",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "macipgw",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "netatalk",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "netatalk-tests",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "netatalk-tools",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "papd",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        },
        {
            "binary_name": "timelord",
            "binary_version": "4.2.3~ds-2.1ubuntu0.2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:Pro:14.04:LTS

netatalk

Package

Name: netatalk
Purl: pkg:deb/ubuntu/netatalk?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.2-1ubuntu1

2.2.2-1ubuntu2

2.2.2-1ubuntu2.2

2.2.2-1ubuntu2.2+esm1

2.2.2-1ubuntu2.2+esm2

2.2.2-1ubuntu2.2+esm3

2.2.2-1ubuntu2.2+esm4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "2.2.2-1ubuntu2.2+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:Pro:16.04:LTS

netatalk

Package

Name: netatalk
Purl: pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.5-1

2.2.5-1ubuntu0.2

2.2.5-1ubuntu0.2+esm1

2.2.5-1ubuntu0.2+esm2

2.2.5-1ubuntu0.2+esm3

2.2.5-1ubuntu0.2+esm4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "2.2.5-1ubuntu0.2+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:Pro:18.04:LTS

netatalk

Package

Name: netatalk
Purl: pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.6-1

2.2.6-1ubuntu0.18.04.2

2.2.6-1ubuntu0.18.04.2+esm1

2.2.6-1ubuntu0.18.04.2+esm2

2.2.6-1ubuntu0.18.04.2+esm3

2.2.6-1ubuntu0.18.04.2+esm4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "2.2.6-1ubuntu0.18.04.2+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:Pro:20.04:LTS

netatalk

Package

Name: netatalk
Purl: pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.12~ds-3

3.1.12~ds-4

3.1.12~ds-4ubuntu0.20.04.1

3.1.12~ds-4ubuntu0.20.04.3

3.1.12~ds-4ubuntu0.20.04.3+esm1

3.1.12~ds-4ubuntu0.20.04.4

3.1.12~ds-4ubuntu0.20.04.4+esm1

3.1.12~ds-4ubuntu0.20.04.4+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "3.1.12~ds-4ubuntu0.20.04.4+esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:Pro:22.04:LTS

netatalk

Package

Name: netatalk
Purl: pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.12~ds-9

3.1.12~ds-9build1

3.1.12~ds-9ubuntu0.22.04.1

3.1.12~ds-9ubuntu0.22.04.3

3.1.12~ds-9ubuntu0.22.04.3+esm1

3.1.12~ds-9ubuntu0.22.04.4

3.1.12~ds-9ubuntu0.22.04.4+esm1

3.1.12~ds-9ubuntu0.22.04.4+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "3.1.12~ds-9ubuntu0.22.04.4+esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"

Ubuntu:Pro:24.04:LTS

netatalk

Package

Name: netatalk
Purl: pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.15~ds-1ubuntu1

3.1.18~ds-1

3.1.18~ds-1build2

3.1.18~ds-1build4

3.1.18~ds-1ubuntu0.1~esm1

3.1.18~ds-1ubuntu0.1~esm2

3.1.18~ds-1ubuntu0.1~esm3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "3.1.18~ds-1ubuntu0.1~esm3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7836.json"