# CVE-2026-40129: Code Injection vulnerability in SAP Application Server ABAP for SAP NetWeaver and ABAP Platform

> An authenticated attacker can inject code via crafted inputs, leading to arbitrary code execution for other users in SAP NetWeaver ABAP.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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:** 12 May 2026
- **Updated:** 12 May 2026
- **Also known as:** GHSA-f762-3chp-r6jr

## What is CVE-2026-40129?

CVE-2026-40129 is a medium-severity code injection vulnerability in SAP_SE SAP Application Server ABAP for SAP NetWeaver and ABAP Platform, published on 12 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Due to a Code Injection vulnerability in SAP Application Server ABAP for SAP NetWeaver and ABAP Platform, an authenticated attacker could send specially crafted inputs to the application. If processed by the application, this input could be delivered to users subscribed to the channel and result in execution. Successful exploitation could enable the attacker to execute arbitrary code for other users, resulting in a low impact on the integrity, with no impact to the confidentiality and availability of the system.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-40129?


## How do I fix CVE-2026-40129?

No fix has been published for CVE-2026-40129 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-40129 being exploited?

There is no known exploitation of CVE-2026-40129 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-40129 and fix it if it is affected.

What it is: CVE-2026-40129 is a medium-severity code injection vulnerability in SAP_SE SAP Application Server ABAP for SAP NetWeaver and ABAP Platform, published on 12 May 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-2026-40129 in the wild and no public exploit code.

Affected product: SAP_SE SAP Application Server ABAP for SAP NetWeaver and ABAP 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-2026-40129/ (Markdown: https://insights.sbomify.com/CVE-2026-40129/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-40129
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40129
- OSV: https://osv.dev/vulnerability/CVE-2026-40129

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-40129/
Summaries are generated and may contain mistakes; the official description above is the record.