CVE-2026-120955

Name	CVE-2026-120955
Description	The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions during file retrieval. This can cause the process to terminate when stream operations continue. A user who can influence file download parameters can trigger this condition, which may result in service unavailability for applications using the affected API.
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)	bookworm	1.23.1-1+deb12u3	vulnerable
	trixie	1.30.4-1+deb13u3	vulnerable
	forky	2.5.7-1	vulnerable
	sid	2.5.8-1	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)	2.5.8-1

Notes

[trixie] - mongo-c-driver <no-dsa> (Minor issue)
https://jira.mongodb.org/browse/CDRIVER-6494
Fixed by: https://github.com/mongodb/mongo-c-driver/commit/25cbf31e919ed0ec81f090b309268e602828d243 (2.5.8)
Fixed by: https://github.com/mongodb/mongo-c-driver/commit/811030d131c4caba8dc9645c54319d692ca7b851 (1.30.15)