UBUNTU-CVE-2026-8829

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Source
https://ubuntu.com/security/CVE-2026-8829
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-8829
Upstream
  • CVE-2026-8829
Published
2026-06-04T00:00:00Z
Modified
2026-06-08T09:45:36.613430820Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

HTML::Entities versions before 3.84 for Perl read freed heap memory in decodeentities. The XS routine backing HTML::Entities::decodeentities cached a pointer (repl) into the entity-value SV returned by hvfetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to growgap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation. The read may disclose adjacent heap contents into the destination SV.

References

Affected packages

Ubuntu:14.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.71-1
3.71-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.71-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:16.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.71-2
3.71-2build1
3.72-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.72-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:18.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.72-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.72-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:20.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.72-3build2
3.72-3build3
3.72-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.72-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:22.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.76-1
3.76-1build1
3.76-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.76-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:24.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.81-1
3.81-1build1
3.81-1build2
3.81-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.81-1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:25.10
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.83-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.83-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"
Ubuntu:26.04:LTS
libhtml-parser-perl

Package

Name
libhtml-parser-perl
Purl
pkg:deb/ubuntu/libhtml-parser-perl?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.83-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtml-parser-perl",
            "binary_version": "3.83-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8829.json"