CVE-2026-96355 Webform - Critical - Remote Code Execution - SA-CONTRIB-2026-175
Critical 9.1
Published
Updated
Check this codebase for CVE-2026-96355 and fix it if it is affected.
What it is: CVE-2026-96355 is a critical vulnerability in Drupal Webform, published on 22 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-96355 in the wild and no public exploit code.
Affected product: Drupal Webform. 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-2026-96355/ (Markdown: https://insights.sbomify.com/CVE-2026-96355/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-96355?
CVE-2026-96355 is a critical vulnerability in Drupal Webform, published on 22 Oct 2026.
Official description
Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.
Weakness: CWE-1336
Which versions are affected by CVE-2026-96355?
Linux distribution packages (1)
drupal/webform Packagist:https://packages.drupal.org/8 | All versions | 6.2.12, 6.3.1 |
How do I fix CVE-2026-96355?
Upgrade to a fixed version.
Is CVE-2026-96355 being exploited?
There is no known exploitation of CVE-2026-96355 in the wild and no public exploit code.
Sources
Also known as DRUPAL-CONTRIB-2026-175, GHSA-4cxr-j7h5-h594.