MongoDB CXX Driver fix: Reject embedded NUL in distinct fields (CXX-3551)

Vulnerability Overview Vulnerability Title: Embedded NUL truncation in collection distinct Vulnerability Type: Bug Priority: Major - P3 Status: Unresolved Version: 4.6.1 Component: myDns Impact Scope Affected Versions: None Tags: myDns Remediation Remediation Status: Unresolved Remediation Version: 4.6.1 Activity Log Comments: - Author: Kevin Albertson - Time: Oct 08 2026 10:35:26 AM GMT+0000 - Content: Additional Information Created: Aug 06 2026 12:19:17 PM UTC Updated: Oct 08 2026 06:45:26 PM UTC End Date: 01/Nov/2026 Target End Date: 01/Nov/2026 Personnel Information Assignee: Kevin Albertson Reporter: Kevin Albertson Vote: Vote for this issue Watchers: Start watching this issue Export Options Export: Export Navigation Bar MongoDB Dashboards Projects Issues easyBI Footer MongoDB C++ Driver Issues Reports Components Search Bar Search User Information Log In Help ? Export Button Export Activity Tags All Comments Work Log History Activity Sort Order Newest first Comment Count 17 Comment Details Author: Kevin Albertson Time: Oct 08 2026 10:35:26 AM GMT+0000 Content: Comment Links GitHub User Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.albertson@mongodb.com Comment Username kevinAlbss Comment Message CXX-3551 reject embedded NUL in 'distinct' fields Comment Branch releases/v4.6 Comment Link https://github.com/mongodb/mongo-cxx-driver/commit/5a6efb4ae260a3dded243a1b1e4d788e392416 Comment Time Oct 08 2026 10:35:26 AM GMT+0000 Comment Author Kevin Albertson Comment Email kevin.

Goal Reached Thanks to every supporter — we hit 100%!

MongoDB CXX Driver fix: Reject embedded NUL in distinct fields (CXX-3551)

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