{"id":"CVE-2016-3630","aliases":["GHSA-9vjf-jjcq-3gh7","PYSEC-2016-29"],"url":"https://o3.security/vulnerability/CVE-2016-3630","summary":"Mercurial arbitrary code execution vulnerability","details":"The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2) push, or (3) pull command, related to (a) a list sizing rounding error and (b) short records.","published":"2016-04-13T16:59:20.850Z","modified":"2026-04-16T06:21:52.773707847Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.04872,"percentile":0.91263,"asOf":"2026-08-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"mercurial","fixedVersion":"3.7.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00017.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"},{"type":"ADVISORY","url":"https://selenic.com/repo/hg-stable/rev/b6ed2505d6cf"},{"type":"ADVISORY","url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181542.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00016.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00018.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00043.html"},{"type":"ADVISORY","url":"http://www.debian.org/security/2016/dsa-3542"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201612-19"},{"type":"ADVISORY","url":"https://selenic.com/repo/hg-stable/rev/b9714d958e89"},{"type":"ADVISORY","url":"https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_3.7.3_.282016-3-29.29"},{"type":"ADVISORY","url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181505.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3630"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2016-29.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-16T06:21:52.773707847Z"}}