CVE-2026-9740 - Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow

CVE-2026-9740 - Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow

https://cvefeed.io/rssfeed/latest.atom / Wed, 06/10/2026 - 02:28
CVE ID :CVE-2026-9740
Published : June 9, 2026, 10:43 p.m. | 21 minutes ago
Description :A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.
Severity: 8.7 | HIGH
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