# CVE-2026-84658: Information disclosure in Jenkins Script Security Plugin

> Attackers can read script approval configuration via form submission in the Jenkins Script Security Plugin, exposing sensitive settings.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A: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:** 2 Sep 2026
- **Updated:** 2 Sep 2026
- **Also known as:** GHSA-h88x-gpj9-phg2

## What is CVE-2026-84658?

CVE-2026-84658 is a medium-severity vulnerability in Jenkins Script Security Plugin, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Jenkins Script Security Plugin 1412.v7737b_3405f86 and earlier uses the `@DataBoundConstructor` annotation on a constructor that loads script approval configuration, allowing attackers able to submit certain forms to read that configuration.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-84658?

It affects 1 product.


Products: Jenkins Script Security.

## How do I fix CVE-2026-84658?

No fix has been published for CVE-2026-84658 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-84658 being exploited?

There is no known exploitation of CVE-2026-84658 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins Script Security Plugin

- [CVE-2019-1003029](https://insights.sbomify.com/CVE-2019-1003029/): Jenkins Script Security Plugin Sandbox Bypass (critical 9.9, exploited in the wild)
- [CVE-2022-43401](https://insights.sbomify.com/CVE-2022-43401/): Sandbox bypass vulnerabilities in Jenkins Script Security Plugin and in Pipeline: Groovy Plugin (critical 9.9)
- [CVE-2022-43403](https://insights.sbomify.com/CVE-2022-43403/): Jenkins Script Security Plugin sandbox bypass vulnerability (critical 9.9)
- [CVE-2022-43404](https://insights.sbomify.com/CVE-2022-43404/): Sandbox bypass vulnerabilities in Jenkins Script Security Plugin and in Pipeline: Groovy Plugin (critical 9.9)
- [CVE-2020-2279](https://insights.sbomify.com/CVE-2020-2279/): Sandbox bypass vulnerability in Jenkins Script Security Plugin (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84658 and fix it if it is affected.

What it is: CVE-2026-84658 is a medium-severity vulnerability in Jenkins Script Security Plugin, published on 2 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-2026-84658 in the wild and no public exploit code.

Affected product: Jenkins Script Security Plugin. 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-2026-84658/ (Markdown: https://insights.sbomify.com/CVE-2026-84658/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84658
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84658
- OSV: https://osv.dev/vulnerability/CVE-2026-84658

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84658/
Summaries are generated and may contain mistakes; the official description above is the record.