CVE-2026-118179
EUVD-2026-11135627.10.2026, 19:17
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.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources
(CNA/ADP records, vendor advisories, Enginsight analysis).
| Vendor | Product | Version | Source |
|---|---|---|---|
| mozilla | thunderbird | 𝑥 < 159 | CNA |
| mozilla | thunderbird_esr | 141.0.0 ≤ 𝑥 < 153.6 | CNA |
Debian Releases