UBUNTU-CVE-2026-59203

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Source
https://ubuntu.com/security/CVE-2026-59203
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59203.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-59203
Upstream
Published
2026-07-14T16:17:00Z
Modified
2026-09-21T21:39:52Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L 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 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open() to seek backwards to the same directive and parse it repeatedly in an infinite loop. This issue is fixed in version 12.3.0.

References

Affected packages

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-2026-59203.json"