{
"id": "GHSA-wjx4-4jcj-g98j",
"aliases": [
"CVE-2026-42308"
],
"details": "If a font advances for each glyph by an exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer overflow. This has been fixed.",
"summary": "Pillow has an integer overflow when processing fonts",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "12.2.0"
}
]
}
],
"package": {
"name": "pillow",
"ecosystem": "PyPI"
}
}
],
"modified": "2026-06-08T23:40:21Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"score": "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"
}
],
"published": "2026-05-04T20:18:45Z",
"references": [
{
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-wjx4-4jcj-g98j",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42308",
"type": "ADVISORY"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2026-165.yaml",
"type": "WEB"
},
{
"url": "https://github.com/python-pillow/Pillow",
"type": "PACKAGE"
},
{
"url": "https://github.com/python-pillow/Pillow/releases/tag/12.2.0",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-05-09T06:16:09Z",
"github_reviewed_at": "2026-05-04T20:18:45Z"
}
}