CVE-2026-9100
Published:May 20, 2026
Updated:June 11, 2026
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).
Affected Packages
mongo-c-driver (CONAN):
Affected version(s) >=1.30.3 <1.30.8Fix Suggestion:
Update to version 1.30.8mongo-c-driver (CONAN):
Affected version(s) >=2.2.0 <2.2.4Fix Suggestion:
Update to version 2.2.4https://github.com/mongodb/mongo-c-driver.git (GITHUB):
Affected version(s) >=1.30.0 <1.30.8Fix Suggestion:
Update to version 1.30.8https://github.com/mongodb/mongo-c-driver.git (GITHUB):
Affected version(s) >=2.0.0 <2.2.4Fix Suggestion:
Update to version 2.2.4Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Validation of Specified Index, Position, or Offset in Input
EPSS
Base Score:
0.07