Debian/thunderbird: high 7.5
Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Action: Upgrade thunderbird to 1:140.13.0esr-2~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.13.0esr-2~deb13u1 | - |
Fixed versions
| 1:140.13.0esr-2~deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-16405#Debian:13/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-16405
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