{"action":"Upgrade mercurial to 4.6.1 or later.","affected":[{"fixed":"4.6.1","introduced":"0"}],"component":"mercurial","cve_ids":["CVE-2018-13347"],"ecosystem":"PyPI","epss":0.02665,"exploited":false,"fixed_versions":["4.6.1"],"ghsa_id":"GHSA-3mjj-mr4f-qxmx","id":"tcs_01M5KG887CHYFVQQ0D37B0BS85","modified_at":"2026-06-10T17:01:23.753435195Z","published_at":"2018-07-06T00:29:00Z","references":["https://osv.dev/vulnerability/PYSEC-2018-89","https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29","https://www.mercurial-scm.org/repo/hg-committed/log?rev=modifies%28%22mercurial%2Fmpatch.c%22%29+and+4.5%3A%3A","https://www.mercurial-scm.org/repo/hg/rev/1acfc35d478c","https://access.redhat.com/errata/RHSA-2019:2276","https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html","https://github.com/advisories/GHSA-3mjj-mr4f-qxmx"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2018-89","url":"https://osv.dev/vulnerability/PYSEC-2018-89"}],"summary":"mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002."}