PT-2026-42200 · Mongodb+2 · C Driver+1

Published 2026-05-20 · Updated 2026-05-20 · CVE-2026-9100

Positive Technologies (AI Summary)

CVSS v4.0

6.0

Medium

Base vector

AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions MongoDB C Driver (affected versions not specified)

Description The legacy GridFS API accepts malformed file metadata from the database without adequate validation. This can lead to applications reading these files experiencing a crash due to a division-by-zero error or a silent leak of process memory contents caused by an out-of-bounds read, which occurs when the software reads data outside the intended boundary of a buffer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-1285

Related Identifiers

CVE-2026-9100

Affected Products

C Driver

Mongodb C Driver

References · 7

• https://cve.org/CVERecord?id=CVE-2026-9100 · Security Note
• https://ubuntu.com/security/CVE-2026-9100 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-9100 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-9100 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-9100 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-9100 · Vendor Advisory
• https://jira.mongodb.org/browse/CDRIVER-6281 · Note