CVE-2026-120955

HIGH
MEDIUM Priority: 0.03 BB Relevance: 77/100
Published: 2026-11-03 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: None
VI: None
VA: High

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.

Affected Software (4)

VendorProductVersion
MongoDB C Driver 1.25.0
MongoDB C Driver 2.0.0
MongoDB C Driver 1.25.0
MongoDB C Driver 2.0.0

References & Advisories (1)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.36%
Raw Score 0.003590
Percentile 30.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00359
2026-11-13
0.00359
2026-11-12
0.00359
2026-11-10
0.00359
2026-11-09
0.00359
2026-11-08
0.00359
2026-11-07
0.00359
2026-11-06
0.00359
2026-11-05
0.00359
2026-11-04
0.00359

Intelligence Sources

mitre ref →
nvd ref →