# CVE-2026-76287: Authorization Bypass in the Data Management REST API in Splunk Enterprise


- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 21 Oct 2026
- **Updated:** 23 Oct 2026
- **Also known as:** GHSA-77wm-h672-qx76

## What is CVE-2026-76287?

CVE-2026-76287 is a medium-severity vulnerability in Splunk Enterprise, published on 21 Oct 2026. 

### Official description

In Splunk Enterprise versions below 10.4.4, a user that holds a role with the preview_data_management_pipeline capability or edit_data_management_pipeline_job capability could read or delete Data Management SPL2 preview jobs and results outside their ownership scope.
The vulnerability is possible because the Data Management Representational State Transfer (REST) API verifies the required capability but does not verify that the requested preview job belongs to the requester.
The affected Data Management REST API is available only when the Edge Processor feature is turned on. The Edge Processor feature is turned off by default.
For more information see Set up a data management control plane (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/getting-started/set-up-a-data-management-control-plane) and Getting sample data for previewing data transformations (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/working-with-pipelines/getting-sample-data-for-previewing-data-transformations) in the Splunk documentation.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-76287?


## How do I fix CVE-2026-76287?

No fix has been published for CVE-2026-76287 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-76287 being exploited?

There is no known exploitation of CVE-2026-76287 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-76287 and fix it if it is affected.

What it is: CVE-2026-76287 is a medium-severity vulnerability in Splunk Enterprise, published on 21 Oct 2026. 
Exploitation: There is no known exploitation of CVE-2026-76287 in the wild and no public exploit code.

Affected product: Splunk Enterprise. 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-2026-76287/ (Markdown: https://insights.sbomify.com/CVE-2026-76287/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-76287
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-76287
- OSV: https://osv.dev/vulnerability/CVE-2026-76287

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-76287/
Summaries are generated and may contain mistakes; the official description above is the record.