CVE-2026-86859CWE-284broken-access-control

CVE-2026-86859

published September 24, 2026

CVSS
8.7
EPSS
0%
Percentile
20.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.7 · NONE
CVSS v4.0
8.7 · 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
EPSS
0.00290 · 20.5th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-24T23:17Z
References (1)
EPSS history
Timeline
  • 26 SEP 03:27Z
    EPSS moved — → 0%
    epss
  • 24 SEP 18:52Z
    Unauthenticated Arbitrary Record Disclosure in ServiceNow AI Platform
    cvelistv5