CVE-2026-93765CWE-470

CVE-2026-93765

Critical · published September 18, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

Mongoid contains an unsafe reflection weakness in the document persistence layer of its object-document mapping code. Input whose keys are passed through from an unauthenticated party by an embedding application can cause unintended internal method invocation instead of the intended array field update. This may result in unintended removal of stored records and in the embedding application becoming unresponsive.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
8.3 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00511 · 42.7th percentile
Weakness
CWE-470 · Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Published
2026-09-18T21:17Z
Affected products (4)
ProductVersionsFixed in
mongodb/mongoid≥ 8.0.0, < 8.0.128.0.12
mongodb/mongoid≥ 8.1.0, < 8.1.138.1.13
mongodb/mongoid≥ 9.0.0, < 9.0.129.0.12
mongodb/mongoidall versions—
References (1)
https://jira.mongodb.org/browse/MONGOID-5973 · [email protected]
EPSS history
Timeline
  • 20 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 18 SEP 17:01Z
    Document deletion and process crash via unvalidated method-name dispatch in atomic pop operation
    cvelistv5