CVE-2018-13347

mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002.

• CWE-190

• https://access.redhat.com/errata/RHSA-2019:2276
• https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
• https://www.mercurial-scm.org/repo/hg-committed/log?rev=modifies%28%22mercurial%2Fmpatch.c%22%29+and+4.5%3A%3APatch, Vendor Advisory
• https://www.mercurial-scm.org/repo/hg/rev/1acfc35d478cPatch, Vendor Advisory
• https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29Release Notes, Vendor Advisory
• https://access.redhat.com/errata/RHSA-2019:2276
• https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
• https://www.mercurial-scm.org/repo/hg-committed/log?rev=modifies%28%22mercurial%2Fmpatch.c%22%29+and+4.5%3A%3APatch, Vendor Advisory
• https://www.mercurial-scm.org/repo/hg/rev/1acfc35d478cPatch, Vendor Advisory
• https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29Release Notes, Vendor Advisory

Published

Jul 6, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-13339Imperavi Redactor 3 in Angular Redactor 1.1.6, when HTML con…
• CVE-2018-1334In Apache Spark 1.0.0 to 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, w…
• CVE-2018-13340Gleez CMS 1.2.0 has CSRF, as demonstrated by a /page/add req…
• CVE-2018-13341Crestron TSW-X60 all versions prior to 2.001.0037.001 and MC…
• CVE-2018-13342The server API in the Anda app relies on hardcoded credentia…
• CVE-2018-13346The mpatch_apply function in mpatch.c in Mercurial before 4.…
• CVE-2018-13348The mpatch_decode function in mpatch.c in Mercurial before 4…
• CVE-2018-13349Cross-site scripting in the web application taskbar in Terra…
• CVE-2018-1335From Apache Tika versions 1.7 to 1.17, clients could send ca…
• CVE-2018-13350SQL injection in logtable.php in TerraMaster TOS version 3.1…
• CVE-2018-13351Cross-site scripting in Control Panel in TerraMaster TOS ver…
• CVE-2018-13352Session Exposure in the web application for TerraMaster TOS …