CVE-2026-8431 json
Ops Manager RCE via webhook body
published 2026-05-12 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-29749
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
An administrative user with access to configure webhooks can execute arbitrary commands by configuring and then triggering webhooks containing specific FreeMarker template syntax.
This issue affects all MongoDB Ops Manager 7.0 versions and MongoDB Ops Manager versions 8.0.22 and prior.
Patch / fix
- MongoDB, Inc. Ops Manager 8.0.23
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- MongoDB, Inc. Ops Manager
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
mongodb.com
/docs/ops-manager/current/release-notes/application/#onprem-server-8.0.23
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-8431
- NVD CVE-2026-8431
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.