UBUNTU-CVE-2026-79769

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Source

https://ubuntu.com/security/CVE-2026-79769

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-79769

Upstream

CVE-2026-79769

Published

2026-08-25T16:17:00Z

Modified

2026-09-02T19:36:47.048658878Z

Severity

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

Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initializecopywith_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.

References

Affected packages

Ubuntu:16.04:LTS

ruby-nokogiri

Package

Name: ruby-nokogiri
Purl: pkg:deb/ubuntu/ruby-nokogiri?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.6.6.2+ds-2build2

1.6.6.3-1

1.6.7-1

1.6.7.1-1

1.6.7.2-3

1.6.7.2-3build1

1.6.7.2-3ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.6.7.2-3ubuntu0.1",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"

Ubuntu:18.04:LTS

ruby-nokogiri

Package

Name: ruby-nokogiri
Purl: pkg:deb/ubuntu/ruby-nokogiri?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.8.0-1

1.8.1-1

1.8.1-1build1

1.8.2-1build1

1.8.2-1ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.8.2-1ubuntu0.1",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"

Ubuntu:24.04:LTS

ruby-nokogiri

Package

Name: ruby-nokogiri
Purl: pkg:deb/ubuntu/ruby-nokogiri?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.14.3+dfsg-2

1.16.2+dfsg-1

1.16.2+dfsg-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.16.2+dfsg-1build1",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"

Ubuntu:26.04:LTS

ruby-nokogiri

Package

Name: ruby-nokogiri
Purl: pkg:deb/ubuntu/ruby-nokogiri?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.18.2+dfsg-1build1

1.18.10+dfsg-2

1.18.10+dfsg-3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.18.10+dfsg-3",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"

Ubuntu:Pro:14.04:LTS

ruby-nokogiri

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.5.9-2

1.5.9-3

1.6.0-1

1.6.1+ds-1

1.6.1+ds-1ubuntu0.1~esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.6.1+ds-1ubuntu0.1~esm1",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"

Ubuntu:Pro:20.04:LTS

ruby-nokogiri

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.10.3+dfsg1-2

1.10.4+dfsg1-1

1.10.7+dfsg1-1

1.10.7+dfsg1-2

1.10.7+dfsg1-2build1

1.10.7+dfsg1-2ubuntu0.1~esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.10.7+dfsg1-2ubuntu0.1~esm2",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"

Ubuntu:Pro:22.04:LTS

ruby-nokogiri

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.11.1+dfsg-2ubuntu1

1.11.7+dfsg-3

1.11.7+dfsg-3build1

1.13.1+dfsg-2

1.13.1+dfsg-2ubuntu0.1~esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.13.1+dfsg-2ubuntu0.1~esm1",
            "binary_name": "ruby-nokogiri"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79769.json"