# CVE-2025-26661: Missing Authorization check in SAP NetWeaver (ABAP Class Builder)

> Attackers can bypass authorization checks in SAP NetWeaver ABAP Class Builder to escalate privileges and access sensitive data.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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:** 11 Mar 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-r597-fw99-924j

## What is CVE-2025-26661?

CVE-2025-26661 is a high-severity missing authorization vulnerability in SAP_SE SAP NetWeaver (ABAP Class Builder), published on 11 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Due to missing authorization check, SAP NetWeaver (ABAP Class Builder) allows an attacker to gain higher access levels than they should have, resulting in escalation of privileges. On successful exploitation, this could result in disclosure of highly sensitive information. It could also have a high impact on the integrity and availability of the application.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2025-26661?


## How do I fix CVE-2025-26661?

No fix has been published for CVE-2025-26661 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-26661 being exploited?

There is no known exploitation of CVE-2025-26661 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-26661 and fix it if it is affected.

What it is: CVE-2025-26661 is a high-severity missing authorization vulnerability in SAP_SE SAP NetWeaver (ABAP Class Builder), published on 11 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-26661 in the wild and no public exploit code.

Affected product: SAP_SE SAP NetWeaver (ABAP Class Builder). 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-2025-26661/ (Markdown: https://insights.sbomify.com/CVE-2025-26661/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-26661
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-26661
- OSV: https://osv.dev/vulnerability/CVE-2025-26661

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-26661/
Summaries are generated and may contain mistakes; the official description above is the record.