CVE-2026-82071CWE-787

CVE-2026-82071

High · published September 8, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
44.6
In the wild
Unconfirmed
What it is

Insufficient validation of storage engine configuration options in MongoDB Server allows an authenticated user with write privileges to supply crafted parameters during collection creation that override internal storage metadata. This results in an out-of-bounds memory write in the server process, causing a denial of service via server crash, with potential for further impact including arbitrary code execution.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
7.2 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00540 · 44.6th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-09-08T21:18Z
Affected products (1)
ProductVersionsFixed in
mongodb/mongodb≥ 8.3.0, < 8.3.98.3.9
References (1)
https://jira.mongodb.org/browse/SERVER-131860 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 16:12Z
    Insufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to Out-of-Bounds Write
    cvelistv5