CVE-2026-119338.8HighCWE-787
Post-authentication use-after-free in server-side JavaScript BSON-to-array conversion
Not in CISA KEV
0.4%probability of exploitation in the next 30 days
32nd percentile
050100
Higher than 32% of scored CVEs
8.8HighCVSS 3.1
LowMediumHighCrit.
DescriptionNVD
A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 17 Jun.
- MongoDB flaws risk unauthenticated crashes and data corruptionSecurityOnline · first in our coverage
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