# CVE-2026-0506: Missing Authorization check in SAP NetWeaver Application Server ABAP and ABAP Platform

> An authenticated attacker can misuse RFC functions to modify data and invoke system functionality, impacting integrity and availability.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`)
- **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:** 13 Jan 2026
- **Updated:** 13 Jan 2026
- **Also known as:** GHSA-mg77-v38f-9pm9

## What is CVE-2026-0506?

CVE-2026-0506 is a high-severity missing authorization vulnerability in Sap Netweaver Application Server Abap, published on 13 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Due to a Missing Authorization Check vulnerability in Application Server ABAP and ABAP Platform, an authenticated attacker could misuse an RFC function to execute form routines (FORMs) in the ABAP system. Successful exploitation could allow the attacker to write or modify data accessible via FORMs and invoke system functionality exposed via FORMs, resulting in a high impact on integrity and availability, while confidentiality remains unaffected.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-0506?

It affects 1 product.


Products: Sap Netweaver Application Server Abap.

## How do I fix CVE-2026-0506?

No fix has been published for CVE-2026-0506 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0506 being exploited?

There is no known exploitation of CVE-2026-0506 in the wild and no public exploit code.

## Other vulnerabilities in Sap Netweaver Application Server Abap

- [CVE-2026-0488](https://insights.sbomify.com/CVE-2026-0488/): Code Injection vulnerability in SAP CRM and SAP S/4HANA (Scripting Editor) (critical 9.9)
- [CVE-2021-40499](https://insights.sbomify.com/CVE-2021-40499/): Code injection in SAP NetWeaver Application Server for ABAP (SAP Cloud Print Manager and SAPSprint) (critical 9.8)
- [CVE-2023-27269](https://insights.sbomify.com/CVE-2023-27269/): Directory Traversal vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform (critical 9.6)
- [CVE-2023-27500](https://insights.sbomify.com/CVE-2023-27500/): Directory Traversal vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform (critical 9.6)
- [CVE-2023-0014](https://insights.sbomify.com/CVE-2023-0014/): Capture-replay vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0506 and fix it if it is affected.

What it is: CVE-2026-0506 is a high-severity missing authorization vulnerability in Sap Netweaver Application Server Abap, published on 13 Jan 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-2026-0506 in the wild and no public exploit code.

Affected product: Sap Netweaver Application Server Abap. 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-2026-0506/ (Markdown: https://insights.sbomify.com/CVE-2026-0506/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0506
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0506
- OSV: https://osv.dev/vulnerability/CVE-2026-0506

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-0506/
Summaries are generated and may contain mistakes; the official description above is the record.