CVE-2026-13063

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 61/100
Published: 2026-07-22 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt library insufficiently validates payload-supplied values, which can result in an excessively large memory allocation.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
mongodb mongodb 8.2.0 – 8.2.12

References & Advisories (1)

https://jira.mongodb.org/browse/SERVER-127737
Vendor Advisory Issue Tracking

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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

0.40%
Raw Score 0.004020
Percentile 34.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00402
2026-10-28
0.00402

Intelligence Sources

nvd ref →