# CVE-2026-58233: Remote Code Execution vulnerability in SAP Change and Transport System Attach Tool (ctsattach)

> An authenticated attacker can achieve remote code execution and data theft by tricking a victim into processing a malicious archive file.

- **Severity:** High 7.6 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-hfjv-fqqx-2hxw

## What is CVE-2026-58233?

CVE-2026-58233 is a high-severity unsafe deserialization vulnerability in SAP_SE SAP Change and Transport System Attach Tool (ctsattach), published on 14 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

SAP Change and Transport System Attach Tool (ctsattach) allows an authenticated attacker to supply a specially crafted archive file which, when processed by the application�s library, can trigger insecure deserialization and lead to remote code execution (RCE) on the system. Successful exploitation requires a victim to process the malicious archive, enabling the attacker to execute the RCE and extract sensitive information and gain control over the system and its processes. This vulnerability has a high impact on confidentiality and integrity of the data, with a low impact on the availability of the system.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2026-58233?


## How do I fix CVE-2026-58233?

No fix has been published for CVE-2026-58233 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-58233 being exploited?

There is no known exploitation of CVE-2026-58233 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-58233 and fix it if it is affected.

What it is: CVE-2026-58233 is a high-severity unsafe deserialization vulnerability in SAP_SE SAP Change and Transport System Attach Tool (ctsattach), published on 14 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-58233 in the wild and no public exploit code.

Affected product: SAP_SE SAP Change and Transport System Attach Tool (ctsattach). 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-2026-58233/ (Markdown: https://insights.sbomify.com/CVE-2026-58233/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-58233
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-58233
- OSV: https://osv.dev/vulnerability/CVE-2026-58233

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-58233/
Summaries are generated and may contain mistakes; the official description above is the record.