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Description

A vulnerability has been identified in the ServiceNow AI Platform that could enable an unauthenticated user to impersonate another user and perform the operations that the impersonated user is entitled to perform. ServiceNow has addressed this vulnerability by deploying a relevant security update to hosted instances in October 2025. Security updates have also been provided to ServiceNow self-hosted customers, partners, and hosted customers with unique configurations. Additionally, the vulnerability is addressed in the listed Store App versions. We recommend that customers promptly apply an appropriate security update or upgrade if they have not already done so.

PUBLISHED Reserved 2025-10-28 | Published 2026-01-12 | Updated 2026-01-14 | Assigner SN




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:H/U:Amber

Problem types

CWE-250: Execution with Unnecessary Privileges

Product status

Default status
unaffected

5.0.26 (semver)
affected

5.0.26 (semver)
affected

Default status
unaffected

Any version before 3.15.2
affected

Any version before 4.0.4
affected

Credits

Aaron Costello – AppOmni finder

References

support.servicenow.com/...cle_view&sysparm_article=KB2587329 vendor-advisory

cve.org (CVE-2025-12420)

nvd.nist.gov (CVE-2025-12420)

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