Debian/libssh: medium 6.5
A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSH_MSG_CHANNEL_OPEN, causing later channel writes to loop indefinitely and consume CPU, leading to
Action: Upgrade libssh to 0.12.2-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 0.12.2-1 | - |
Fixed versions
| 0.12.2-1 |
Sources
- osv: DEBIAN-CVE-2026-59843#Debian:14/libssh
- https://security-tracker.debian.org/tracker/CVE-2026-59843
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