{"apiVersion":"1.0","identifier":"CVE-2026-74939","description":"Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.","publishedAt":"2026-08-18T13:17:30","lastModifiedAt":"2026-08-21T04:18:16","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74939","cvssScore":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","epssProbability":0.00304,"riskScore":0.9,"affectedProduct":"Firefox","affectedVersions":"<154","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74939","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74939","en":"https://www.redsauce.net/en/cves/CVE-2026-74939","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74939","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74939","de":"https://www.redsauce.net/de/cves/CVE-2026-74939","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74939","el":"https://www.redsauce.net/el/cves/CVE-2026-74939"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74939"}}