FlatBSON Duplicate Field Index Drift
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.6%
from disclosure to weapon6 days
Published on NVDMay 12
1st PoC+6d
exploitation probability
0.6%top 56% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the internal field-name-to-index mapping within the time-series bucket catalog. Under certain conditions this can result in arbitrary code execution.
This issue impacts MongoDB Server v5.0 versions prior to 5.0.33, v6.0 versions prior to 6.0.28, v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
MongoDB, Inc. · MongoDB Serverpublic PoCs found — 1
githubgithub.com/mgiay/CVE-2026-8053-MongoDB★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.