{"action":"Upgrade mercurial to 4.3 or later.","affected":[{"fixed":"4.3","introduced":"0"}],"component":"mercurial","cve_ids":["CVE-2017-1000116"],"ecosystem":"PyPI","epss":0.06543,"exploited":false,"fixed_versions":["4.3"],"ghsa_id":"GHSA-3qmg-c9vc-r47j","id":"tcs_01M5KG7JPKQFX5TTF1FW93BT69","modified_at":"2026-06-10T17:02:04.459487574Z","published_at":"2017-10-05T01:29:00Z","references":["https://osv.dev/vulnerability/PYSEC-2017-89","https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.3_.2F_4.3.1_.282017-08-10.29","https://security.gentoo.org/glsa/201709-18","http://www.securityfocus.com/bid/100290","http://www.debian.org/security/2017/dsa-3963","https://access.redhat.com/errata/RHSA-2017:2489","https://github.com/advisories/GHSA-3qmg-c9vc-r47j"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"PYSEC-2017-89","url":"https://osv.dev/vulnerability/PYSEC-2017-89"},{"source":"nvd","source_id":"CVE-2017-1000116","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-1000116"}],"summary":"Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks."}