UBUNTU-CVE-2026-112391

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Source
https://ubuntu.com/security/CVE-2026-112391
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-112391
Upstream
Published
2026-10-19T21:17:00Z
Modified
2026-10-28T20:18:17Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • 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

Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow's PdfParser.get_value() can recurse without a limit while reading nested PDF objects. The parser follows attacker-controlled arrays and dictionaries when an existing PDF is opened for append. An attacker can provide a deeply nested PDF to an application that saves an image with PDF append enabled. This can raise an uncaught RecursionError or terminate the worker, causing denial of service. This issue is fixed in version 13.0.0.

References

Affected packages

Ubuntu:22.04:LTS
pillow

Package

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

Affected ranges

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

Affected versions

8.*
8.1.2+dfsg-0.3
9.*
9.0.0-1
9.0.1-1
9.0.1-1build1
9.0.1-1ubuntu0.1
9.0.1-1ubuntu0.2
9.0.1-1ubuntu0.3
9.0.1-1ubuntu0.4
9.0.1-1ubuntu0.5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-pil",
            "binary_version":  "9.0.1-1ubuntu0.5"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "9.0.1-1ubuntu0.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:24.04:LTS
pillow

Package

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

Affected ranges

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

Affected versions

10.*
10.0.0-1
10.1.0-1
10.2.0-1
10.2.0-1build1
10.2.0-1ubuntu1
10.2.0-1ubuntu1.2
10.2.0-1ubuntu1.3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-pil",
            "binary_version":  "10.2.0-1ubuntu1.3"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "10.2.0-1ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:26.04:LTS
pillow

Package

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

Affected ranges

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

Affected versions

11.*
11.3.0-1ubuntu1
11.3.0-1ubuntu2
12.*
12.0.0-1ubuntu1
12.1.1-1ubuntu1
12.1.1-2ubuntu1
12.1.1-2ubuntu1.1
12.1.1-2ubuntu1.2
12.1.1-2ubuntu1.3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-pil",
            "binary_version":  "12.1.1-2ubuntu1.3"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "12.1.1-2ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:26.10
pillow

Package

Name
pillow
Purl
pkg:deb/ubuntu/pillow?arch=source&distro=stonking

Affected ranges

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

Affected versions

12.*
12.1.1-2ubuntu1
12.3.0-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-pil",
            "binary_version":  "12.3.0-1ubuntu1"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "12.3.0-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:Pro:14.04:LTS
pillow

Package

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

Affected ranges

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

Affected versions

2.*
2.2.1-1ubuntu2
2.2.1-2ubuntu1
2.2.1-3ubuntu2
2.2.1-3ubuntu3
2.2.1-3ubuntu4
2.2.1-3ubuntu6
2.3.0-1ubuntu1
2.3.0-1ubuntu2
2.3.0-1ubuntu3
2.3.0-1ubuntu3.2
2.3.0-1ubuntu3.3
2.3.0-1ubuntu3.4
2.3.0-1ubuntu3.4+esm1
2.3.0-1ubuntu3.4+esm2
2.3.0-1ubuntu3.4+esm3
2.3.0-1ubuntu3.4+esm4
2.3.0-1ubuntu3.4+esm5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-imaging",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python-imaging-compat",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python-imaging-sane",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python-imaging-tk",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python-pil",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python-pil.imagetk",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python-sane",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python3-imaging",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python3-imaging-sane",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python3-imaging-tk",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python3-pil",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        },
        {
            "binary_name":  "python3-sane",
            "binary_version":  "2.3.0-1ubuntu3.4+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:Pro:16.04:LTS
pillow

Package

Name
pillow
Purl
pkg:deb/ubuntu/pillow?arch=source&distro=esm-infra%2Fxenial

Affected ranges

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

Affected versions

2.*
2.9.0-1
3.*
3.0.0-1
3.0.0-1build1
3.1.0-1
3.1.1-1
3.1.2-0ubuntu1
3.1.2-0ubuntu1.1
3.1.2-0ubuntu1.3
3.1.2-0ubuntu1.4
3.1.2-0ubuntu1.5
3.1.2-0ubuntu1.6
3.1.2-0ubuntu1.6+esm1
3.1.2-0ubuntu1.6+esm2
3.1.2-0ubuntu1.6+esm3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-imaging",
            "binary_version":  "3.1.2-0ubuntu1.6+esm3"
        },
        {
            "binary_name":  "python-pil",
            "binary_version":  "3.1.2-0ubuntu1.6+esm3"
        },
        {
            "binary_name":  "python-pil.imagetk",
            "binary_version":  "3.1.2-0ubuntu1.6+esm3"
        },
        {
            "binary_name":  "python3-pil",
            "binary_version":  "3.1.2-0ubuntu1.6+esm3"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "3.1.2-0ubuntu1.6+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:Pro:18.04:LTS
pillow

Package

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

Affected ranges

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

Affected versions

4.*
4.1.1-3build2
4.3.0-2ubuntu1
5.*
5.0.0-1
5.1.0-1
5.1.0-1ubuntu0.2
5.1.0-1ubuntu0.3
5.1.0-1ubuntu0.4
5.1.0-1ubuntu0.5
5.1.0-1ubuntu0.6
5.1.0-1ubuntu0.7
5.1.0-1ubuntu0.8
5.1.0-1ubuntu0.8+esm1
5.1.0-1ubuntu0.8+esm2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-pil",
            "binary_version":  "5.1.0-1ubuntu0.8+esm2"
        },
        {
            "binary_name":  "python-pil.imagetk",
            "binary_version":  "5.1.0-1ubuntu0.8+esm2"
        },
        {
            "binary_name":  "python3-pil",
            "binary_version":  "5.1.0-1ubuntu0.8+esm2"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "5.1.0-1ubuntu0.8+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
Ubuntu:Pro:20.04:LTS
pillow

Package

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

Affected ranges

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

Affected versions

6.*
6.1.0-1
6.1.0-1build1
6.2.1-2
7.*
7.0.0-4
7.0.0-4build1
7.0.0-4ubuntu0.1
7.0.0-4ubuntu0.2
7.0.0-4ubuntu0.3
7.0.0-4ubuntu0.4
7.0.0-4ubuntu0.5
7.0.0-4ubuntu0.6
7.0.0-4ubuntu0.7
7.0.0-4ubuntu0.8
7.0.0-4ubuntu0.9
7.0.0-4ubuntu0.9+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-pil",
            "binary_version":  "7.0.0-4ubuntu0.9+esm1"
        },
        {
            "binary_name":  "python3-pil.imagetk",
            "binary_version":  "7.0.0-4ubuntu0.9+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"
pillow-python2

Package

Name
pillow-python2
Purl
pkg:deb/ubuntu/pillow-python2?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

6.*
6.2.1-3~build1
6.2.1-3
6.2.1-3ubuntu0.1~esm1
6.2.1-3ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-pil",
            "binary_version":  "6.2.1-3ubuntu0.1~esm2"
        },
        {
            "binary_name":  "python-pil.imagetk",
            "binary_version":  "6.2.1-3ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112391.json"