CVE-2026-81523

Name	CVE-2026-81523
Description	A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. The resulting impact is limited to incorrect schema selection, which may lead to limited disclosure or modification of information handled by the application.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libmongocrypt (PTS)	bullseye	1.1.0-1	vulnerable
	bookworm	1.7.2-1	vulnerable
	trixie	1.13.2-1	vulnerable
	forky	1.20.2-1	vulnerable
	sid	1.20.3-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libmongocrypt	source	(unstable)	1.20.3-1

[trixie] - libmongocrypt <no-dsa> (Minor issue)
https://jira.mongodb.org/browse/MONGOCRYPT-977