Vulnerability details

CVE-2026-9746

MongoDB Server

Server crashes in case of the use of exchange

CVSS 4.0
7.1High

Official 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.

CVSS scores

ScoreVersionSourceVector
7.1High 4.0 CVEProject cvelistV5 (CNA) (mongodb) CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5Medium 3.1 CVEProject cvelistV5 (CNA) (mongodb) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersionsSource
MongoDB MongoDB Server 7.0.0 ≤ v < 7.0.35 CVEProject cvelistV5 (CNA)
MongoDB MongoDB Server 8.0.0 ≤ v < 8.0.24 CVEProject cvelistV5 (CNA)
MongoDB MongoDB Server 8.2.0 ≤ v < 8.2.10 CVEProject cvelistV5 (CNA)
MongoDB MongoDB Server 8.3.0 ≤ v < 8.3.3 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-06-10
Last updated
2026-06-10
State
Published
Assigner (CNA)
mongodb

Exploit prediction (EPSS)

0.27%
Probability of exploitation in 30 days
19.2%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-617
    Reachable assertion