UBUNTU-CVE-2026-24688

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Source
https://ubuntu.com/security/CVE-2026-24688
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-24688
Upstream
Published
2026-01-27T20:16:00Z
Modified
2026-01-30T20:45:13.205338Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

pypdf is a free and open-source pure-python PDF library. An attacker who uses an infinite loop vulnerability that is present in versions prior to 6.6.2 can craft a PDF which leads to an infinite loop. This requires accessing the outlines/bookmarks. This has been fixed in pypdf 6.6.2. If projects cannot upgrade yet, consider applying the changes from PR #3610 manually.

References

Affected packages

Ubuntu:20.04:LTS
pypdf2

Package

Name
pypdf2
Purl
pkg:deb/ubuntu/pypdf2@1.26.0-3ubuntu1.20.04.2?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.26.0-2
1.26.0-3ubuntu1
1.26.0-3ubuntu1.20.04.1
1.26.0-3ubuntu1.20.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.26.0-3ubuntu1.20.04.2",
            "binary_name": "python-pypdf2"
        },
        {
            "binary_version": "1.26.0-3ubuntu1.20.04.2",
            "binary_name": "python3-pypdf2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"
Ubuntu:22.04:LTS
pypdf2

Package

Name
pypdf2
Purl
pkg:deb/ubuntu/pypdf2@1.26.0-4ubuntu0.22.04.2?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.26.0-4
1.26.0-4ubuntu0.22.04.1
1.26.0-4ubuntu0.22.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.26.0-4ubuntu0.22.04.2",
            "binary_name": "python3-pypdf2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"
Ubuntu:24.04:LTS
pypdf

Package

Name
pypdf
Purl
pkg:deb/ubuntu/pypdf@4.0.2-1?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*
3.4.1-1
3.17.4-1
4.*
4.0.0-1
4.0.1-1
4.0.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.0.2-1",
            "binary_name": "python3-pypdf"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"
pypdf2

Package

Name
pypdf2
Purl
pkg:deb/ubuntu/pypdf2@2.12.1-4?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.12.1-3
2.12.1-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.12.1-4",
            "binary_name": "python3-pypdf2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"
Ubuntu:25.10
pypdf

Package

Name
pypdf
Purl
pkg:deb/ubuntu/pypdf@5.4.0-1?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.3.1-1
5.*
5.4.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.4.0-1",
            "binary_name": "python3-pypdf"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"
Ubuntu:Pro:16.04:LTS
pypdf2

Package

Name
pypdf2
Purl
pkg:deb/ubuntu/pypdf2@1.25.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

1.*
1.23+git20141008-1
1.25.1-1
1.25.1-1ubuntu0.1~esm1
1.25.1-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.25.1-1ubuntu0.1~esm2",
            "binary_name": "python-pypdf2"
        },
        {
            "binary_version": "1.25.1-1ubuntu0.1~esm2",
            "binary_name": "python3-pypdf2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"
Ubuntu:Pro:18.04:LTS
pypdf2

Package

Name
pypdf2
Purl
pkg:deb/ubuntu/pypdf2@1.26.0-2ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*
1.26.0-2
1.26.0-2ubuntu0.1~esm1
1.26.0-2ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.26.0-2ubuntu0.1~esm2",
            "binary_name": "python-pypdf2"
        },
        {
            "binary_version": "1.26.0-2ubuntu0.1~esm2",
            "binary_name": "python3-pypdf2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-24688.json"