CVE-2026-6875 Details.
ServiceNow AI Platform - Pre-Auth JavaScript Sandbox Escape RCE
Atlas does not check this one. Needs a scripted sequence.
This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one.
About CVE-2026-6875. What It Means.
ServiceNow AI Platform (Brazil, Australia, Zurich, and Yokohama releases before patching) contains a pre-authentication remote code execution vulnerability. The /assessment_thanks.do endpoint passes the sysparm_assessable_type parameter into GlideRecord's addQuery(), which evaluates "javascript:" prefixed values as JavaScript in a restricted script sandbox. A sandbox escape gadget using Object.defineProperty and Class.create.constructor chains through the gs.include('ItemVie…
Affected Product. What Is Hit.
- Vendor
- servicenow
- Product
- ServiceNow
References. Where To Read More.
- https://slcyber.io/research-center/smashing-the-servicenow-sandbox-pre-authentication-rce/
- https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB3137947
- https://nvd.nist.gov/vuln/detail/CVE-2026-6875
- https://www.bleepingcomputer.com/news/security/critical-servicenow-code-execution-flaw-now-exploited-in-attacks/
- https://github.com/tc4dy/CVE-2026-6875-PoC-Exploit
FAQ
Common Questions.
ServiceNow AI Platform - Pre-Auth JavaScript Sandbox Escape RCE. ServiceNow AI Platform (Brazil, Australia, Zurich, and Yokohama releases before patching) contains a pre-authentication remote code execution vulnerability. The /assessment_thanks.do endpoint passes the sysparm_assessable_type parameter into GlideRecord's addQuery(), which evaluates "javascript:" prefixed values as JavaScript in a restricted script sandbox. A sandbox escape gadget using Object.defineProperty and Class.create.constructor chains through the gs.include('ItemVie…
No. This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one. The facts about CVE-2026-6875 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-6875 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update ServiceNow to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-6875. Atlas does not run a check for it, so nothing here says whether a particular site is affected.