Debian/thunderbird: medium 5.9
When setting up an account, Thunderbird's Exchange AutoDiscover lookup also queried the domain's AutoDiscover service over plain HTTP. Due to a bug, that unencrypted request included the credentials t
Action: Upgrade thunderbird to 1:153.5.1esr-1~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:153.5.1esr-1~deb13u1 | - |
Fixed versions
| 1:153.5.1esr-1~deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-113866#Debian:13/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-113866
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