{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42144", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-24T17:15:21.834Z", "datePublished": "2026-05-04T17:51:38.144Z", "dateUpdated": "2026-05-04T17:51:38.144Z"}, "containers": {"cna": {"title": "CImg Library: Integer overflow in PNM size check bypasses memory guard (_load_pnm)", "problemTypes": [{"descriptions": [{"cweId": "CWE-190", "lang": "en", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/GreycLab/CImg/security/advisories/GHSA-4663-63fm-44gc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/GreycLab/CImg/security/advisories/GHSA-4663-63fm-44gc"}, {"name": "https://github.com/GreycLab/CImg/issues/478", "tags": ["x_refsource_MISC"], "url": "https://github.com/GreycLab/CImg/issues/478"}, {"name": "https://github.com/GreycLab/CImg/commit/4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d", "tags": ["x_refsource_MISC"], "url": "https://github.com/GreycLab/CImg/commit/4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d"}, {"name": "https://github.com/GreycLab/CImg/releases/tag/v.3.7.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/GreycLab/CImg/releases/tag/v.3.7.5"}], "affected": [{"vendor": "GreycLab", "product": "CImg", "versions": [{"version": "< 4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-04T17:51:38.144Z"}, "descriptions": [{"lang": "en", "value": "CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc."}], "source": {"advisory": "GHSA-4663-63fm-44gc", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc."}], "id": "CVE-2026-42144", "lastModified": "2026-05-04T18:16:31.830", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-04T18:16:31.830", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/GreycLab/CImg/commit/4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d"}, {"source": "security-advisories@github.com", "url": "https://github.com/GreycLab/CImg/issues/478"}, {"source": "security-advisories@github.com", "url": "https://github.com/GreycLab/CImg/releases/tag/v.3.7.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/GreycLab/CImg/security/advisories/GHSA-4663-63fm-44gc"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "CImg", "source": "cna", "vendor": "GreycLab"}, "product": "cimg", "vendor": "greyclab"}], "created": "2026-05-04T19:30:02.683960+00:00", "updated": "2026-05-04T19:43:44.923967+00:00", "vendors": ["greyclab", "greyclab$PRODUCT$cimg"]}