CVE-2026-8431
CVE-2026-8431 is a high-severity vulnerability in Mongodb Ops Manager with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v4: 9.4
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-29749
- Weakness: CWE-77
- Affected product: Mongodb Ops Manager
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-8431?
- 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.
- How severe is CVE-2026-8431?
- CVE-2026-8431 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-8431 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-8431?
- CVE-2026-8431 affects Mongodb Ops Manager. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-8431?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-8431 have an EU (EUVD) identifier?
- Yes. CVE-2026-8431 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29749.
- When was CVE-2026-8431 published?
- CVE-2026-8431 was published on 2026-05-12 and last updated on 2026-09-24.
References
Affected products (1)
- cpe:2.3:a:mongodb:ops_manager:*:*:*:*:*:*:*:*
More vulnerabilities in Mongodb Ops Manager
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- CVE-2019-2388 — Medium (CVSS 5.8): In affected Ops Manager versions there is an exposed http route was that may allow attackers to view a specific access…
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