CVE-2026-82056

A race condition in MongoDB server's text index query parsing can cause a heap use-after-free read when handling upsert retry paths. Under certain concurrent index lifecycle operations, a raw pointer to internal text index metadata may be dereferenced after the underlying structures have been freed, leading to a server crash. An authenticated user with readWrite privileges can trigger this condition through specific concurrent text-search and index management operations, resulting in denial of service for all connected clients. This

Score
CVSS 4.0 6.0 Medium
Status
Analyzed - cna@mongodb.com
Published
2026-09-08
Last modified
2026-09-08
Weaknesses
CWE-416

Affected products

References

 
 
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