CVE-2026-44658

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{"affected": [{"affectedData": [{"product": "desktop", "vendor": "zen-browser", "versions": [{"status": "affected", "version": "< 1.19.12b"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Zen is a firefox-based browser. Prior to 1.19.12b, RSS feed URLs entered by the user are validated to http: or https: in promptForFeedUrl, but item links inside the feed are not subject to the same restriction. The provider maps each RSS/Atom item link into item.url, filters only for presence and date, and returns the item list. The live-folder manager later creates pinned lazy tabs from these values with gBrowser.addTrustedTab(item.url, ...). This vulnerability is fixed in 1.19.12b."}, {"lang": "es", "value": "Zen es un navegador basado en Firefox. Antes de la versi\u00f3n 1.19.12b, las URL de feeds RSS introducidas por el usuario se validan para http: o https: en promptForFeedUrl, pero los enlaces de elementos dentro del feed no est\u00e1n sujetos a la misma restricci\u00f3n. El proveedor mapea cada enlace de elemento RSS/Atom a item.url, filtra solo por presencia y fecha, y devuelve la lista de elementos. El gestor de carpetas en vivo m\u00e1s tarde crea pesta\u00f1as perezosas ancladas a partir de estos valores con gBrowser.addTrustedTab(item.url, ...). Esta vulnerabilidad se corrige en la versi\u00f3n 1.19.12b."}], "id": "CVE-2026-44658", "lastModified": "2026-10-26T18:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 2.4, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44658", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-11T18:22:28.229614Z", "version": "2.0.3"}}]}, "published": "2026-05-11T18:16:38.243", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/zen-browser/desktop/security/advisories/GHSA-cc9c-mmmf-c5j6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.19.12b)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "desktop", "source": "cna", "vendor": "zen-browser"}, "product": "desktop", "vendor": "zen-browser"}], "created": "2026-05-11T18:45:25.662425+00:00", "updated": "2026-05-12T09:22:48.725540+00:00", "vendors": ["zen-browser", "zen-browser$PRODUCT$desktop"]}