CVE-2026-86859

CVE Enrichment

CVSS: 8.7 HIGH
EPSS: 0.29%
EPSS Percentile: 19.89%
CISA KEV: Not listed

Description

ServiceNow has remediated an authorization bypass security issue that was identified in the ServiceNow AI Platform. This security issue, if exploited, could enable an unauthenticated user to access data within the ServiceNow AI Platform that the user otherwise would not be entitled to access, potentially enabling further unintended access. ServiceNow deployed a security update to hosted instances and ServiceNow provided the update to our partners and self-hosted customers. We are not currently aware of malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: psirt@servicenow.com
Published: 25-Sep-2026 02:17
Last Modified: 25-Sep-2026 04:00
EPSS Date: 2026-10-11
CWE: CWE-284

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:H /
                            VI:N /
                            VA:N /
                            SC:N /
                            SI:N /
                            SA:N /
                            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

References

psirt@servicenow.com

Last enrichment sync: 12-Oct-2026 03:27
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

CVE-2026-95391, CVE-2026-95389 (Wireshark), CVE-2026-86857, CVE-2026-86858, CVE-2026-13016, CVE-2026-86859, CVE-2026-86860 (ServiceNow), CVE-2026-93485 aka Comment2Shell (WordPress), CVE-2026-76708, Weekly Security Recap: Exploited Citrix NetScaler Flaw and Dozens of Vulnerabilities

CVE (135)

Vendors (1)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.