{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59197", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-02T19:53:48.831Z", "datePublished": "2026-07-14T16:25:23.520Z", "dateUpdated": "2026-07-14T16:25:23.520Z"}, "containers": {"cna": {"title": "Pillow: Heap out-of-bounds write in Pillow `ImageFilter.RankFilter` via integer overflow in `ImagingExpand`", "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "lang": "en", "description": "CWE-787: Out-of-bounds Write", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-190", "lang": "en", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-xj96-63gp-2gmr", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-xj96-63gp-2gmr"}, {"name": "https://github.com/python-pillow/Pillow/pull/9695", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-pillow/Pillow/pull/9695"}, {"name": "https://github.com/python-pillow/Pillow/commit/cce3bdb867c77a3420261ed1bfdb6b0787ec8fc1", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-pillow/Pillow/commit/cce3bdb867c77a3420261ed1bfdb6b0787ec8fc1"}, {"name": "https://github.com/python-pillow/Pillow/releases/tag/12.3.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-pillow/Pillow/releases/tag/12.3.0"}], "affected": [{"vendor": "python-pillow", "product": "Pillow", "versions": [{"version": "< 12.3.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-14T16:25:23.520Z"}, "descriptions": [{"lang": "en", "value": "Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter() calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0."}], "source": {"advisory": "GHSA-xj96-63gp-2gmr", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,12.3.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Pillow", "source": "cna", "vendor": "python-pillow"}, "product": "pillow", "vendor": "python-pillow"}], "created": "2026-07-14T17:30:04.761750+00:00", "updated": "2026-07-14T17:30:04.761777+00:00", "vendors": ["python-pillow", "python-pillow$PRODUCT$pillow"]}