USN-8093-2: libssh vulnerability
Publication date
19 August 2026
Overview
libssh could be made to crash or behave unexpectedly.
Releases
Packages
- libssh - A tiny C SSH library
Details
USN-8093-1 fixed a vulnerability in libssh. This update provides
the corresponsing fix for Ubuntu 26.04 LTS.
Original advisory details:
It was discovered that libssh incorrectly performed bounds checking when
processing SFTP extensions. If a client application queried extension data out
of bounds, it could cause the application to crash, resulting in a denial of
service, or exhibit unintended behavior.
USN-8093-1 fixed a vulnerability in libssh. This update provides
the corresponsing fix for Ubuntu 26.04 LTS.
Original advisory details:
It was discovered that libssh incorrectly performed bounds checking when
processing SFTP extensions. If a client application queried extension data out
of bounds, it could cause the application to crash, resulting in a denial of
service, or exhibit unintended behavior.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | libssh-4 – 0.11.3-1ubuntu2 | ||
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