CVE-2026-106433
Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated…
- Risk score
- 56/100
- CVSS
- 8.8 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 8 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid mem…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.8 high
References
Original description
Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.
Last activity 8 Oct 2026. Patch Forecast updates every hour.