CVE-2026-1849

published 2026-02-10

CVE-2026-1849: MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive…

Priority P3 39 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
mongodb	mongodb	>= 7.0.0 < 7.0.29	7.0.29
mongodb	mongodb	>= 8.0.0 < 8.0.18	8.0.18
mongodb	mongodb	>= 8.2.0 < 8.2.2	8.2.2
mongodb_inc	mongodb_server	>= 7.0 < 7.0.29	7.0.29
mongodb_inc	mongodb_server	>= 8.0 < 8.0.18	8.0.18
mongodb_inc	mongodb_server	>= 8.2 < 8.2.2	8.2.2

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v4.0 7.1 HIGH 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

osv 7.1 HIGH

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CWE-674