Is CVE-2026-8202 in the CISA KEV catalog?

No. CVE-2026-8202 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-8202?

CVE-2026-8202 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-8202?

CVE-2026-8202 has an EPSS score of 0.26% (18th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-8202?

Upgrade MongoDB to 8.0.23 or later.

CVE & CISA-KEV Catalog

CVE-2026-8202

MEDIUM

4.3

CVSS v3

NVD

Description

Using a densely populated chars mask and a large input string in the MongoDB aggregation operators $trim, $ltrim, and $rtrim, an authenticated user with aggregation permissions can pin CPU utilization at 100% for an extended period of time. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

MongoDBWindows application

Affected:8.0.0 8.0.23Fixed in:8.0.23MongoDB Inc.

Affected:7.0.0 7.0.34Fixed in:7.0.34MongoDB Inc.

Affected:8.2.0 8.2.9Fixed in:8.2.9MongoDB Inc.

Affected:8.3.0 8.3.2Fixed in:8.3.2MongoDB Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.26%probability of exploitation in 30 days

18thpercentile

Low risk: more likely to be exploited than 18% of all known CVEs.

References

Vendor Advisory1

jira.mongodb.org

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50387	High	7.5	100%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2019-11479	High	7.5	92%	-	Fix
CVE-2024-27316	High	7.5	91%	-	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2019-9515	High	7.5	88%	-	Fix

Embed a live status badge for CVE-2026-8202

Markdown

[![CVE-2026-8202](https://tridentstack.com/cve/badge/CVE-2026-8202.svg)](https://tridentstack.com/cve/CVE-2026-8202)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-8202"><img src="https://tridentstack.com/cve/badge/CVE-2026-8202.svg" alt="CVE-2026-8202"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-18.