# CVE-2020-26818: Missing authorization in SAP NetWeaver AS ABAP (Web Dynpro)

> An authenticated user can access restricted Web Dynpro components to reveal sensitive system information due to missing authorization checks.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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:** 10 Nov 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-67fv-h3m9-7p8h

## What is CVE-2020-26818?

CVE-2020-26818 is a medium-severity missing authorization vulnerability in Sap Netweaver Application Server Abap, published on 10 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

SAP NetWeaver AS ABAP (Web Dynpro), versions - 731, 740, 750, 751, 752, 753, 754, 755, 782, allows an authenticated user to access Web Dynpro components, which reveals sensitive system information that would otherwise be restricted to highly privileged users because of missing authorization, resulting in Information Disclosure.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2020-26818?

It affects 1 product.


Products: Sap Netweaver Application Server Abap.

## How do I fix CVE-2020-26818?

No fix has been published for CVE-2020-26818 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-26818 being exploited?

There is no known exploitation of CVE-2020-26818 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-2020-26818 and fix it if it is affected.

What it is: CVE-2020-26818 is a medium-severity missing authorization vulnerability in Sap Netweaver Application Server Abap, published on 10 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-26818 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-2020-26818/ (Markdown: https://insights.sbomify.com/CVE-2020-26818/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26818
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26818
- OSV: https://osv.dev/vulnerability/CVE-2020-26818

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-26818/
Summaries are generated and may contain mistakes; the official description above is the record.