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MongoDB 8.3.4

8.3.3โ†’8.3.4SecurityBug fix
๐Ÿ“… June 11, 2026๐Ÿ—‚ Databases๐Ÿ“ฆ MongoDB โ†—๐Ÿ“œ Full changelog โ†—
โœฆ Editor's summary

MongoDB 8.3.4 is a maintenance release that addresses a security vulnerability (CVE-2026-11933) and includes a server-side bug fix related to BSON object ownership semantics. MongoDB recommends upgrading to this version to maintain security and stability.

โš  Security impact
  • Fixed security vulnerability CVE-2026-11933.
  • MongoDB recommends upgrading to this release to address the vulnerability.

What's new

MongoDB has released MongoDB 8.3.4, a maintenance update focused on security and reliability.

This release includes a fix for a publicly disclosed security vulnerability and resolves a server-side issue affecting BSON object ownership handling.

  • Fixed security vulnerability CVE-2026-11933.
  • Resolved SERVER-128125, improving BSON object ownership semantics.
  • Included additional maintenance and reliability improvements.

MongoDB recommends upgrading to version 8.3.4 to receive the latest security and stability updates.

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