CVE-2017-1000116 Mercurial is vulnerable to shell injection attack

What is CVE-2017-1000116?

CVE-2017-1000116 is a critical vulnerability in Debian Debian Linux, published on 4 Oct 2017.

Official description

Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks.

Weakness: CWE-78

Which versions are affected by CVE-2017-1000116?

3 open source packages ship an affected version, including mercurial. It affects 8 products.

Products include Debian Debian Linux, Mercurial Mercurial, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus and 2 more.

How do I fix CVE-2017-1000116?

Upgrade mercurial to 4.3 or later.

Is CVE-2017-1000116 being exploited?

There is no known exploitation of CVE-2017-1000116 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2017-1000116, DEBIAN-CVE-2017-1000116, GHSA-3qmg-c9vc-r47j, PYSEC-2017-89, UBUNTU-CVE-2017-1000116.