CVE-2026-104657

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Fiddler Download & Setup Skill", "vendor": "Progress Software", "versions": [{"lessThan": "8.3.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@progress.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing integrity verification in the Progress Software Fiddler Download and Setup Skill on Linux, macOS, and Windows which allows an attacker to compromise or influence a release component and execute attacker-controlled code when a user runs the skill. On macOS, the skill stages the package at a predictable path and installs it with administrator privileges, which may allow code execution with root privileges after user approval. A local process may also replace the staged macOS package while the skill waits for approval."}], "id": "CVE-2026-104657", "lastModified": "2026-11-06T20:38:53.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "security@progress.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-104657", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T17:14:11.732315Z", "version": "2.0.3"}}]}, "published": "2026-11-06T17:17:11.353", "references": [{"source": "security@progress.com", "url": "https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-missing-download-integrity-verification-cve-2026-104657"}], "sourceIdentifier": "security@progress.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-377"}, {"lang": "en", "value": "CWE-494"}], "source": "security@progress.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.3.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Fiddler Download & Setup Skill", "source": "cna", "vendor": "Progress Software"}, "product": "fiddler_download_&_setup_skill", "vendor": "progress_software"}], "created": "2026-11-06T17:30:09.165196+00:00", "updated": "2026-11-06T21:13:10.065249+00:00", "vendors": ["progress_software", "progress_software$PRODUCT$fiddler_download_&_setup_skill"]}