CVE-2026-81524

Name	CVE-2026-81524
Description	A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have operations directed at a resource other than the one intended.
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
mongo-c-driver (PTS)	bullseye	1.17.6-1	vulnerable
	bullseye (security)	1.17.6-1+deb11u2	vulnerable
	bookworm	1.23.1-1+deb12u3	vulnerable
	trixie	1.30.4-1+deb13u2	vulnerable
	forky	2.5.0-1	vulnerable
	sid	2.5.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
mongo-c-driver	source	(unstable)	2.5.1-1

[trixie] - mongo-c-driver <no-dsa> (Minor issue)
https://jira.mongodb.org/browse/CDRIVER-6424