# CVE-2026-123861: Authorization Bypass Through User-Controlled Key vulnerability in CrocoBlock JetFormBuilder – Hierarchical Select jet-form-builder-hierarchi


- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 7 Nov 2026
- **Updated:** 7 Nov 2026
- **Also known as:** GHSA-7fpw-9995-5q93

## What is CVE-2026-123861?

CVE-2026-123861 is a medium-severity vulnerability in CrocoBlock JetFormBuilder – Hierarchical Select, published on 7 Nov 2026. 

### Official description

Authorization Bypass Through User-Controlled Key vulnerability in CrocoBlock JetFormBuilder – Hierarchical Select jet-form-builder-hierarchical-select allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects JetFormBuilder – Hierarchical Select: from n/a through 1.0.10.

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

## Which versions are affected by CVE-2026-123861?


## How do I fix CVE-2026-123861?

No fix has been published for CVE-2026-123861 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-123861 being exploited?

There is no known exploitation of CVE-2026-123861 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-123861 and fix it if it is affected.

What it is: CVE-2026-123861 is a medium-severity vulnerability in CrocoBlock JetFormBuilder – Hierarchical Select, published on 7 Nov 2026. 
Exploitation: There is no known exploitation of CVE-2026-123861 in the wild and no public exploit code.

Affected product: CrocoBlock JetFormBuilder – Hierarchical Select. 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-2026-123861/ (Markdown: https://insights.sbomify.com/CVE-2026-123861/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-123861
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-123861
- OSV: https://osv.dev/vulnerability/CVE-2026-123861

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-123861/
Summaries are generated and may contain mistakes; the official description above is the record.