Is CVE-2026-9746 in the CISA KEV catalog?

No. CVE-2026-9746 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-9746?

CVE-2026-9746 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-9746?

CVE-2026-9746 has an EPSS score of 0.27% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-9746?

Upgrade MongoDB to 7.0.35 or later.

CVE & CISA-KEV Catalog

CVE-2026-9746

MEDIUM

6.5

CVSS v3

NVD

Description

When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.

CWE-617

How to fix

Remediation Available

MongoDBWindows application

Affected:7.0.0 7.0.35Fixed in:7.0.35MongoDB Inc.

Affected:8.0.0 8.0.24Fixed in:8.0.24MongoDB Inc.

Affected:8.2.0 8.2.10Fixed in:8.2.10MongoDB Inc.

Affected:8.3.0 8.3.3Fixed in:8.3.3MongoDB 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

AvailabilityHigh

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Patch1

jira.mongodb.org

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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 2026-06-18.