# CVE-2026-92126: Code injection in Jenkins Script Security Plugin

> Attackers with script permissions can execute arbitrary code outside the sandbox via unsafe @Builder annotations in Jenkins.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Sep 2026
- **Updated:** 26 Sep 2026
- **Also known as:** GHSA-3xcj-rvrm-wg64

## What is CVE-2026-92126?

CVE-2026-92126 is a high-severity code injection vulnerability in Jenkins Script Security Plugin, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier does not reject @Builder annotations whose builderStrategy member names an arbitrary class, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to execute code outside the sandbox if a suitable class is present on the classpath of the component that evaluates the script.

Weakness: CWE-470 (Use of Externally-Controlled Input to Select Classes or Code), CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-92126?

It affects 1 product.


Products: Jenkins Script Security.

## How do I fix CVE-2026-92126?

No fix has been published for CVE-2026-92126 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-92126 being exploited?

There is no known exploitation of CVE-2026-92126 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-2026-92126 and fix it if it is affected.

What it is: CVE-2026-92126 is a high-severity code injection vulnerability in Jenkins Script Security Plugin, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-92126 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-2026-92126/ (Markdown: https://insights.sbomify.com/CVE-2026-92126/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-92126
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-92126
- OSV: https://osv.dev/vulnerability/CVE-2026-92126

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-92126/
Summaries are generated and may contain mistakes; the official description above is the record.