CVE-2026-34398

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{"affected": [{"affectedData": [{"product": "FreeCAD", "vendor": "FreeCAD", "versions": [{"status": "affected", "version": ">= 0.19, < 1.1.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "FreeCAD is a free and open-source multiplatform 3D parametric modeler. From 0.19 until 1.1.1, src/Mod/BIM/bimcommands/BimProjectManager.py in the BIM Project Manager Load Template flow passes attacker-controlled FCStd Meta property values for wpposition, wpu, wpv, and wpaxis directly to eval(), allowing arbitrary Python code execution when a user loads a malicious BIM project template. This issue is fixed in version 1.1.1."}], "id": "CVE-2026-34398", "lastModified": "2026-09-09T21:11:25.743", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34398", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-18T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-08-17T21:16:44.130", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/FreeCAD/FreeCAD/commit/871ee19b76224910332bbfbd39eebbede967998b"}, {"source": "security-advisories@github.com", "url": "https://github.com/FreeCAD/FreeCAD/commit/9ed351cc4700db0a94c46f020c34c58bbf1bdaba"}, {"source": "security-advisories@github.com", "url": "https://github.com/FreeCAD/FreeCAD/pull/28610"}, {"source": "security-advisories@github.com", "url": "https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-8rfj-7956-6gwf"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-8rfj-7956-6gwf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-95"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "FreeCAD: FreeCAD: Arbitrary Code Execution via malicious BIM project template", "id": "2517633", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517633"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-94", "details": ["A flaw was found in FreeCAD, a 3D parametric modeler. The BIM Project Manager's Load Template function does not properly validate certain properties within a project template. This vulnerability allows a remote attacker to embed malicious Python code into a specially crafted BIM project template. When a user opens this malicious template, the embedded code can be executed, potentially leading to arbitrary code execution on the user's system."], "name": "CVE-2026-34398", "public_date": "2026-08-17T20:51:56Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-34398\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-34398\nhttps://github.com/FreeCAD/FreeCAD/commit/871ee19b76224910332bbfbd39eebbede967998b\nhttps://github.com/FreeCAD/FreeCAD/commit/9ed351cc4700db0a94c46f020c34c58bbf1bdaba\nhttps://github.com/FreeCAD/FreeCAD/pull/28610\nhttps://github.com/FreeCAD/FreeCAD/releases/tag/1.1.1\nhttps://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-8rfj-7956-6gwf"], "statement": "This is an Important flaw in FreeCAD where loading a specially crafted BIM project template can lead to arbitrary code execution. The vulnerability requires user interaction to open a malicious file, but successful exploitation grants an attacker full control over the user's system, justifying its Important severity.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0.19,1.1.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FreeCAD", "source": "cna", "vendor": "FreeCAD"}, "product": "freecad", "vendor": "freecad"}], "created": "2026-08-17T22:45:04.420632+00:00", "updated": "2026-08-18T14:15:07.926193+00:00", "vendors": ["freecad", "freecad$PRODUCT$freecad"]}