Dashboard / CVE-2026-106433

CVE-2026-106433

HIGH
MEDIUM Priority: 0.02 BB Relevance: 67/100
Published: 2026-10-08 Modified: 2026-10-27 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
mongodb libmongocrypt 1.5.0 – 1.20.5

References & Advisories (1)

https://jira.mongodb.org/browse/MONGOCRYPT-964
Vendor Advisory Issue Tracking

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

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

EPSS — Exploitation Probability

0.26%
Raw Score 0.002610
Percentile 17.9%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00261
2026-10-29
0.00261
2026-10-28
0.00261

Intelligence Sources

nvd ref →

External Links