{"affected":[{"product":"Thunderbird","source":"CNA: mozilla","vendor":"Mozilla","versions":[{"lessThanOrEqual":"153.*","status":"unaffected","version":"153.6","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"159","versionType":"rpm"}]}],"cveId":"CVE-2026-118179","cwes":["CWE-20"],"description":"Clicking a news: or snews: link that referenced a message-ID made Thunderbird connect, without asking, to the host and port given in the link, even if it was not a configured news server. Line breaks in the message-ID were sent to the server unmodified, so a crafted link could send arbitrary commands to services reachable from the user's network. In addition, snews: links to such servers connected without TLS. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.","epss":{"date":"2026-11-04","percentile":0.07577,"score":0.00179},"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},{"score":8.8,"severity":"high","source":"NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793812654280,"publishedAt":1793124992658,"references":[{"source":"CNA: mozilla","tags":[],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2077789"},{"source":"CNA: mozilla","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-121/"},{"source":"CNA: mozilla","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-122/"},{"source":"security@mozilla.org","tags":[],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2077789"},{"source":"security@mozilla.org","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-121/"},{"source":"security@mozilla.org","tags":[],"url":"https://www.mozilla.org/security/advisories/mfsa2026-122/"}],"remediation":[],"revision":"33af83b04a89ba1fdf7204d6f84f475ea567a637b9a508561a28ca48b4691d03","sources":[{"modifiedAt":1793810643131,"name":"CNA: mozilla","retrievedAt":1793812181815,"url":"https://www.cve.org/CVERecord?id=CVE-2026-118179"},{"modifiedAt":1793812654280,"name":"NVD","retrievedAt":1793816562520,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118179"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812190869,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-118179"}],"ssvc":{"assessedAt":1793810599420,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Request forgery via news: links","updatedAt":1793816562520}