CVE-2026-9737Find command with $meta sort can lead to crash

7.1HighCVSS base score
0.42%Exploitation in 30 daysEPSS · top 63% of all CVEs
NoKnown exploitednot in CISA's KEV catalog
NonePublic exploitsnone known yet

Description

During query planning when reading the sort pattern in raw BSONObj form, in some places we don’t explicitly handle the meta expression case. This may lead to incorrect transformations leading to invariant failure.

Timeline

2026
27 May 2026
27 May 2026
ID reserved
By mongodb
22 Jul 202656 days later
22 Jul 2026· 56 days later
Published
23 Jul 20261 day later
23 Jul 2026· 1 day later
Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-9737, by who scored it
Scored by	CVSS	Score	Vector
mongodbCNA (assigner)	4.0	High7.1	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
mongodbCNA (assigner)	3.1	Medium6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Analyzed	4.0	High7.1	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/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 in 30 days): 0.42% · top 63% of all CVEs (13 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Affected products

MongoDB · MongoDB Server
- affected 7.0 – < 7.0.39
- affected 8.0 – < 8.0.28
- affected 8.2.0 – < 8.2.12
- affected 8.3.0 – < 8.3.7

References1

https://jira.mongodb.org/browse/SERVER-128341 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-9737](https://cveledger.app/badge/CVE-2026-9737.svg)](https://cveledger.app/cve/CVE-2026-9737)

Record last updated 23 Jul 2026, 14:24 UTC.