mongo-c-driver: The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation
CVE-2026-9100 is fixed in mongo-c-driver on 1 platform, first by DEBIAN-CVE-2026-9100, released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.
The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mongo-c-driver · Debian 12.15 (bookworm) | 1.23.1-1+deb12u3 | DEBIAN-CVE-2026-9100 | May 27, 2026 |
| mongo-c-driver · Debian 13.5 (trixie) | 1.30.4-1+deb13u2 | DEBIAN-CVE-2026-9100 | May 27, 2026 |
| mongo-c-driver · Debian 14 | 2.2.4-1 | DEBIAN-CVE-2026-9100 | May 27, 2026 |
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