# CVE-2026-21272: Dreamweaver Desktop | Improper Input Validation (CWE-20)

> An attacker can write arbitrary files to the system by tricking a user into opening a malicious file in Adobe Dreamweaver Desktop.

- **Severity:** High 8.6 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Jan 2026
- **Updated:** 27 Aug 2026
- **Also known as:** GHSA-8w2g-vq5j-7x37

## What is CVE-2026-21272?

CVE-2026-21272 is a high-severity path traversal vulnerability in Adobe Dreamweaver Desktop, published on 13 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper Input Validation vulnerability that could lead to arbitrary file system write. An attacker could leverage this vulnerability to manipulate or inject malicious data into files on the system. Exploitation of this issue requires user interaction in that a victim must open a malicious file and scope is changed.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-21272?

It affects 1 product.


Products: Adobe Dreamweaver.

## How do I fix CVE-2026-21272?

No fix has been published for CVE-2026-21272 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-21272 being exploited?

There is no known exploitation of CVE-2026-21272 in the wild and no public exploit code.

## Other vulnerabilities in Adobe Dreamweaver Desktop

- [CVE-2018-4924](https://insights.sbomify.com/CVE-2018-4924/): Command injection in Adobe Dreamweaver CC 18.0 and earlier versions (critical 9.8)
- [CVE-2010-3132](https://insights.sbomify.com/CVE-2010-3132/): Path traversal in n/a (critical 9.3)
- [CVE-2026-47906](https://insights.sbomify.com/CVE-2026-47906/): Dreamweaver Desktop | Dependency on Vulnerable Third-Party Component (CWE-1395) (high 8.6)
- [CVE-2026-47907](https://insights.sbomify.com/CVE-2026-47907/): Dreamweaver Desktop | Improper Access Control (CWE-284) (high 8.6)
- [CVE-2026-21267](https://insights.sbomify.com/CVE-2026-21267/): Command injection in Adobe Dreamweaver Desktop (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21272 and fix it if it is affected.

What it is: CVE-2026-21272 is a high-severity path traversal vulnerability in Adobe Dreamweaver Desktop, published on 13 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-21272 in the wild and no public exploit code.

Affected product: Adobe Dreamweaver Desktop. 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-2026-21272/ (Markdown: https://insights.sbomify.com/CVE-2026-21272/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21272
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21272
- OSV: https://osv.dev/vulnerability/CVE-2026-21272

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-21272/
Summaries are generated and may contain mistakes; the official description above is the record.