CVE-2026-47247

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47247", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-18T22:54:18.272Z", "datePublished": "2026-07-21T21:16:59.853Z", "dateUpdated": "2026-07-22T14:29:24.487Z"}, "containers": {"cna": {"title": "libheif Vulnerable to Heap Information Disclosure via Grid Image Gap + Uninitialized Pixel Plane Allocation", "problemTypes": [{"descriptions": [{"cweId": "CWE-200", "lang": "en", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-226", "lang": "en", "description": "CWE-226: Sensitive Information in Resource Not Removed Before Reuse", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-682", "lang": "en", "description": "CWE-682: Incorrect Calculation", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-908", "lang": "en", "description": "CWE-908: Use of Uninitialized Resource", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3"}], "affected": [{"vendor": "strukturag", "product": "libheif", "versions": [{"version": "< 1.22.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-21T21:16:59.853Z"}, "descriptions": [{"lang": "en", "value": "libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, two bugs in libheif chain to leak process heap memory as visible pixel values in decoded grid images. An attacker who uploads a crafted AVIF/HEIC file to any server-side image processor (WordPress, Sharp/libvips, ImageMagick, etc.) can recover heap data - including library function pointers sufficient to defeat ASLR, or any other secret - from the publicly-downloadable transcoded JPEG/PNG/WebP output. Local attack vectors are also possible. Version 1.22.0 fixes the issue."}], "source": {"advisory": "GHSA-2vh6-whr3-cmq3", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-22T14:29:01.297213Z", "id": "CVE-2026-47247", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-22T14:29:24.487Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-47247", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-22T14:29:01.297213Z"}}}], "references": [{"url": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-22T14:29:20.524Z"}}], "cna": {"title": "libheif Vulnerable to Heap Information Disclosure via Grid Image Gap + Uninitialized Pixel Plane Allocation", "source": {"advisory": "GHSA-2vh6-whr3-cmq3", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "strukturag", "product": "libheif", "versions": [{"status": "affected", "version": "< 1.22.0"}]}], "references": [{"url": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3", "name": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, two bugs in libheif chain to leak process heap memory as visible pixel values in decoded grid images. An attacker who uploads a crafted AVIF/HEIC file to any server-side image processor (WordPress, Sharp/libvips, ImageMagick, etc.) can recover heap data - including library function pointers sufficient to defeat ASLR, or any other secret - from the publicly-downloadable transcoded JPEG/PNG/WebP output. Local attack vectors are also possible. Version 1.22.0 fixes the issue."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-226", "description": "CWE-226: Sensitive Information in Resource Not Removed Before Reuse"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-682", "description": "CWE-682: Incorrect Calculation"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-908", "description": "CWE-908: Use of Uninitialized Resource"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-21T21:16:59.853Z"}}}, "cveMetadata": {"cveId": "CVE-2026-47247", "state": "PUBLISHED", "dateUpdated": "2026-07-22T14:29:24.487Z", "dateReserved": "2026-05-18T22:54:18.272Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-21T21:16:59.853Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "libheif", "vendor": "strukturag", "versions": [{"status": "affected", "version": "< 1.22.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*", "matchCriteriaId": "CB01CAAF-1D64-461B-8CC0-3CF2FBAC60A5", "versionEndExcluding": "1.22.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, two bugs in libheif chain to leak process heap memory as visible pixel values in decoded grid images. An attacker who uploads a crafted AVIF/HEIC file to any server-side image processor (WordPress, Sharp/libvips, ImageMagick, etc.) can recover heap data - including library function pointers sufficient to defeat ASLR, or any other secret - from the publicly-downloadable transcoded JPEG/PNG/WebP output. Local attack vectors are also possible. Version 1.22.0 fixes the issue."}, {"lang": "es", "value": "libheif es un decodificador y codificador de formato de archivo HEIF y AVIF. Antes de la versi\u00f3n 1.22.0, dos errores en libheif se encadenan para filtrar memoria del heap del proceso como valores de p\u00edxel visibles en im\u00e1genes de cuadr\u00edcula decodificadas. Un atacante que sube un archivo AVIF/HEIC manipulado a cualquier procesador de im\u00e1genes del lado del servidor (WordPress, Sharp/libvips, ImageMagick, etc.) puede recuperar datos del heap - incluyendo punteros de funci\u00f3n de biblioteca suficientes para derrotar ASLR, o cualquier otro secreto - del resultado JPEG/PNG/WebP transcodificado y descargable p\u00fablicamente. Los vectores de ataque locales tambi\u00e9n son posibles. La versi\u00f3n 1.22.0 corrige el problema."}], "id": "CVE-2026-47247", "lastModified": "2026-10-24T19:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47247", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-22T14:29:01.297213Z", "version": "2.0.3"}}]}, "published": "2026-07-21T22:17:12.643", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory", "Mitigation"], "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory", "Mitigation"], "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-2vh6-whr3-cmq3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-226"}, {"lang": "en", "value": "CWE-682"}, {"lang": "en", "value": "CWE-908"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.22.0)"}}], "enrichment": {"confidence": 94.0, "confidence_source": "matching", "scores": [{"score": 94.0, "source": "matching"}]}, "original": {"product": "libheif", "source": "cna", "vendor": "strukturag"}, "product": "libheif", "vendor": "struktur"}], "created": "2026-07-24T03:00:04.322186+00:00", "updated": "2026-08-03T00:30:16.828796+00:00", "vendors": ["struktur", "struktur$PRODUCT$libheif"]}