# CVE-2026-3216: Drupal Canvas - Moderately critical - Server-side request forgery, Information disclosure - SA-CONTRIB-2026-017

> Attackers can exploit a Server-Side Request Forgery flaw in the Drupal Canvas module to access internal resources or sensitive information.

- **Severity:** Medium 5.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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:** Yes
- **Published:** 25 Mar 2026
- **Updated:** 27 Mar 2026
- **Also known as:** DRUPAL-CONTRIB-2026-017, GHSA-6qhv-qccp-876q

## What is CVE-2026-3216?

CVE-2026-3216 is a medium-severity server-side request forgery vulnerability in Drupal Canvas, published on 25 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Server-Side Request Forgery (SSRF) vulnerability in Drupal Drupal Canvas allows Server Side Request Forgery.This issue affects Drupal Canvas: from 0.0.0 before 1.1.1.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-3216?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/canvas` | Packagist:https://packages.drupal.org/8 | All versions | 1.1.1 |

Products: Drupal Canvas Project Drupal Canvas.

## How do I fix CVE-2026-3216?

Upgrade to a fixed version.

## Is CVE-2026-3216 being exploited?

There is no known exploitation of CVE-2026-3216 in the wild and no public exploit code.

## Other vulnerabilities in Drupal Canvas

- [CVE-2026-58587](https://insights.sbomify.com/CVE-2026-58587/): Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-065 (medium 6.1)
- [CVE-2026-58588](https://insights.sbomify.com/CVE-2026-58588/): Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-066 (medium 6.1)
- [CVE-2026-1553](https://insights.sbomify.com/CVE-2026-1553/): Drupal Canvas - Moderately critical - Access bypass - SA-CONTRIB-2026-006 (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3216 and fix it if it is affected.

What it is: CVE-2026-3216 is a medium-severity server-side request forgery vulnerability in Drupal Canvas, published on 25 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-3216 in the wild and no public exploit code.

Affected product: Drupal Canvas. 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-2026-3216/ (Markdown: https://insights.sbomify.com/CVE-2026-3216/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3216
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3216
- OSV: https://osv.dev/vulnerability/CVE-2026-3216

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3216/
Summaries are generated and may contain mistakes; the official description above is the record.