# CVE-2026-86857: Authorization Bypass in ServiceNow AI Platform

> An authenticated user can bypass authorization controls to access unauthorized data within the ServiceNow AI Platform.

- **Severity:** High 8.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Sep 2026
- **Updated:** 25 Sep 2026
- **Also known as:** GHSA-3g9f-q9vc-qffh

## What is CVE-2026-86857?

CVE-2026-86857 is a high-severity missing authorization vulnerability in ServiceNow AI Platform, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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 authenticated 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 an 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.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-86857?


## How do I fix CVE-2026-86857?

No fix has been published for CVE-2026-86857 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-86857 being exploited?

There is no known exploitation of CVE-2026-86857 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-86857 and fix it if it is affected.

What it is: CVE-2026-86857 is a high-severity missing authorization vulnerability in ServiceNow AI Platform, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-86857 in the wild and no public exploit code.

Affected product: ServiceNow AI Platform. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-86857/ (Markdown: https://insights.sbomify.com/CVE-2026-86857/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-86857
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86857
- OSV: https://osv.dev/vulnerability/CVE-2026-86857

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-86857/
Summaries are generated and may contain mistakes; the official description above is the record.