{"id":"DEBIAN-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":"2026-10-09T21:00:14.737657897Z","published":"2026-10-08T19:16:58.750Z","upstream":["CVE-2026-106429"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-106429"}],"affected":[{"package":{"name":"libmongocrypt","ecosystem":"Debian:12","purl":"pkg:deb/debian/libmongocrypt?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10.0-1","1.10.1-1","1.11.0-1","1.12.0-1","1.13.0-1","1.13.1-1","1.13.2-1","1.16.0-1","1.17.0-1","1.17.3-1","1.18.1-1","1.18.2-1","1.19.0-1","1.19.1-1","1.20.0-1","1.20.1-1","1.20.2-1","1.20.3-1","1.20.4-1","1.20.5-1","1.7.2-1","1.8.2-1","1.8.4-1","1.9.1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106429.json"}},{"package":{"name":"libmongocrypt","ecosystem":"Debian:13","purl":"pkg:deb/debian/libmongocrypt?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.2-1","1.13.2-1+deb13u1","1.16.0-1","1.17.0-1","1.17.3-1","1.18.1-1","1.18.2-1","1.19.0-1","1.19.1-1","1.20.0-1","1.20.1-1","1.20.2-1","1.20.3-1","1.20.4-1","1.20.5-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106429.json"}},{"package":{"name":"libmongocrypt","ecosystem":"Debian:14","purl":"pkg:deb/debian/libmongocrypt?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.2-1","1.16.0-1","1.17.0-1","1.17.3-1","1.18.1-1","1.18.2-1","1.19.0-1","1.19.1-1","1.20.0-1","1.20.1-1","1.20.2-1","1.20.3-1","1.20.4-1","1.20.5-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106429.json"}}],"schema_version":"1.9.0","severity":[{"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}