{"id":"CVE-2026-104657","aliases":[],"cve":{"records":[{"id":"CVE-2026-104657","source":"ProgressSoftware","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-02T07:20:03.845Z","published":"2026-11-06T16:33:21.722Z","modified":"2026-11-09T10:39:37.797Z"}],"publishers":[{"name":"ProgressSoftware","role":"CNA","organizationId":"f9fea0b6-671e-4eea-8fde-31911902ae05","modified":"2026-11-09T10:39:37.797Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-06T17:47:49.791Z"}],"references":[{"url":"https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-missing-download-integrity-verification-cve-2026-104657","tags":["vendor-advisory"],"source":"ProgressSoftware"}],"weaknesses":[{"id":"CWE-494","description":"CWE-494: Download of Code Without Integrity Check","source":"ProgressSoftware"},{"id":"CWE-377","description":"CWE-377: Insecure Temporary File","source":"ProgressSoftware"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-06T17:14:11.732315Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Missing Integrity Verification in Progress Software Fiddler Download & Setup Skill","titleSource":"ProgressSoftware","descriptionSource":"ProgressSoftware","description":"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approval.","score":7.5,"severity":"high","published":"2026-11-06T16:33:21.722Z","modified":"2026-11-09T10:39:37.797Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Progress Software","name":"Fiddler Download & Setup Skill","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"8.3.0","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"ProgressSoftware","url":"https://www.cve.org/CVERecord?id=CVE-2026-104657"}],"remediation":[{"text":"Do not run the affected skill version. Install Fiddler manually from the official distribution source, verify the downloaded artifact's publisher signature and available checksum, and on macOS use a per-user DMG installation without administrator privileges.","source":"ProgressSoftware","url":"https://www.cve.org/CVERecord?id=CVE-2026-104657"}],"references":["https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-missing-download-integrity-verification-cve-2026-104657"],"sources":[{"name":"CVE","id":"CVE-2026-104657","modified":"2026-11-09T10:39:37.797Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-104657"}],"assessments":[{"source":"ProgressSoftware","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-11-09T10:45:58.578Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T22:35:32.718Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-06T19:10:38.544Z","attemptedAt":"2026-11-06T19:10:38.544Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-06T19:10:38.729Z","attemptedAt":"2026-11-06T19:10:38.729Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-06T19:10:39.955Z","attemptedAt":"2026-11-06T19:10:39.955Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-06T19:10:38.457Z","attemptedAt":"2026-11-06T19:10:38.457Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-104657","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104657","modified":"2026-11-06T18:17:39.410","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T19:10:38.544Z"},{"source":"GitHub Advisory Database","id":"GHSA-cwv8-gh9g-g9wh","url":"https://github.com/advisories/GHSA-cwv8-gh9g-g9wh","modified":"2026-11-06T18:35:22Z","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T19:10:38.729Z"},{"source":"ENISA EUVD","id":"EUVD-2026-118358","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-118358","modified":"Nov 6, 2026, 5:47:49 PM","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T19:10:39.955Z"}],"aiSummary":{"text":"The Progress Software Fiddler Download and Setup Skill is affected by missing integrity verification, allowing an attacker to compromise a release component. This may enable code execution with administrator or root privileges on Linux, macOS, and Windows. A local process can replace the staged package on macOS.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-06T17:41:24.527Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-104657"}]}}