{"id":"CVE-2025-53010","aliases":["GHSA-3jhf-gxhr-q4cx","PYSEC-2026-1606"],"url":"https://o3.security/vulnerability/CVE-2025-53010","summary":"MaterialX's unchecked nodeGraph->getOutput return is vulnerable to NULL Pointer Dereference","details":"### Summary\n\nWhen parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files.\n\n### Details\n\nIn `src/MaterialXCore/Material.cpp`, in function `getShaderNodes`, the following code fetches the output nodes for a given `nodegraph` input node:\n\n```cpp\n// SNIP...\n        else if (input->hasNodeGraphString())\n        {\n            // Check upstream nodegraph connected to the input.\n            // If no explicit output name given then scan all outputs on the nodegraph.\n            ElementPtr parent = materialNode->getParent();\n            NodeGraphPtr nodeGraph = parent->getChildOfType<NodeGraph>(input->getNodeGraphString());\n            if (!nodeGraph)\n            {\n                continue;\n            }\n            vector<OutputPtr> outputs;\n            if (input->hasOutputString())\n            {\n                outputs.push_back(nodeGraph->getOutput(input->getOutputString())); // <--- null ptr is returned\n            }\n            else\n            {\n                outputs = nodeGraph->getOutputs();\n            }\n            for (OutputPtr output : outputs)\n            {\n                NodePtr upstreamNode = output->getConnectedNode(); // <--- CRASHES HERE\n                if (upstreamNode && !shaderNodeSet.count(upstreamNode))\n                {\n                    if (!target.empty() && !upstreamNode->getNodeDef(target))\n                    {\n                        continue;\n                    }\n                    shaderNodeVec.push_back(upstreamNode);\n                    shaderNodeSet.insert(upstreamNode);\n                }\n            }\n        }\n    }\n// SNIP...\n```\n\nThe issues arise because the `nodeGraph->getOutput(input->getOutputString())` call can return a null pointer, therefore when trying to call `output->getConnectedNode()`, this results in a crash    .\n\n\n### PoC\n\nPlease download `nullptr_getshadernodes.mltx` from the following link:\n\nhttps://github.com/ShielderSec/poc/tree/main/CVE-2025-53010\n\n`build/bin/MaterialXView --material nullptr_getshadernodes.mtlx`\n\n\n### Impact\n\nAn attacker could intentionally crash a target program that uses OpenEXR by sending a malicious MTLX file.","published":"2025-08-01T17:58:28.994Z","modified":"2026-08-12T03:51:25.928146008Z","cvss":null,"epss":{"score":0.00463,"percentile":0.38117,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"materialx","fixedVersion":"1.39.3"}],"fix":{"url":"https://github.com/AcademySoftwareFoundation/MaterialX/commit/e13344ba13326869d7820b444705f24d56fab73d","label":"AcademySoftwareFoundation/MaterialX@e13344b"},"references":[{"type":"WEB","url":"https://github.com/ShielderSec/poc/tree/main/CVE-2025-53010"},{"type":"ADVISORY","url":"https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-3jhf-gxhr-q4cx"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53010.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53010"},{"type":"FIX","url":"https://github.com/AcademySoftwareFoundation/MaterialX/commit/e13344ba13326869d7820b444705f24d56fab73d"},{"type":"PACKAGE","url":"https://github.com/AcademySoftwareFoundation/MaterialX"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:25.928146008Z"}}