{"id":"UBUNTU-CVE-2026-106429","details":"An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint containing a colon after its path or query during key creation. The issue does not access memory outside its allocated bounds.","modified":"2026-10-14T03:22:49.942951822Z","published":"2026-10-13T00:00:00Z","upstream":["CVE-2026-106429"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-106429"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-106429"},{"type":"REPORT","url":"https://jira.mongodb.org/browse/MONGOCRYPT-986"}],"affected":[{"package":{"name":"libmongocrypt","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libmongocrypt?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.1-1","1.2.2-1","1.3.0-1","1.3.0-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmongocrypt0","binary_version":"1.3.0-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-106429.json"}},{"package":{"name":"libmongocrypt","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libmongocrypt?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.2-1","1.8.2-1","1.8.4-1","1.8.4-1build2","1.8.4-1build3"],"ecosystem_specific":{"binaries":[{"binary_name":"libmongocrypt0","binary_version":"1.8.4-1build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-106429.json"}},{"package":{"name":"libmongocrypt","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libmongocrypt?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.2-1","1.17.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmongocrypt0","binary_version":"1.17.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-106429.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}