UBUNTU-CVE-2026-55379

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Source

https://ubuntu.com/security/CVE-2026-55379

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55379.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-55379

Upstream

CVE-2026-55379

Published

2026-07-06T19:17:00Z

Modified

2026-09-01T15:45:21Z

Severity

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. Prior to 12.3.0, PIL/BdfFontFile.py bdf_char() read the BBX width and height field from a BDF font file and passed attacker-controlled dimensions to Image.new() without calling Image._decompression_bomb_check(), bypassing Pillow's documented decompression bomb protection and allowing excessive memory allocation. This issue is fixed in version 12.3.0.

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-2026-55379.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-2026-55379.json"

Ubuntu:25.10

pillow

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

11.*

11.1.0-5build1

11.3.0-1ubuntu1

11.3.0-1ubuntu1.1

11.3.0-1ubuntu1.2

11.3.0-1ubuntu1.3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python3-pil",
            "binary_version": "11.3.0-1ubuntu1.3"
        },
        {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "11.3.0-1ubuntu1.3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55379.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-2026-55379.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-2026-55379.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-2026-55379.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-2026-55379.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-2026-55379.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-2026-55379.json"