# DRUPAL-CONTRIB-2021-003: This module enables you to add groups to other groups in a tree structure where access can be inherited up or down the tree.

> Users may gain unintended permissions in unrelated groups due to flawed inheritance logic in deep tree structures.

- **Severity:** Not scored
- **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:** 27 Jan 2021

## What is DRUPAL-CONTRIB-2021-003?

DRUPAL-CONTRIB-2021-003 is a missing authorization vulnerability in drupal/subgroup, published on 27 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

This module enables you to add groups to other groups in a tree structure where access can be inherited up or down the tree.

When you configure Subgroup to have a tree with at least three levels, users may inadvertently get permissions in a group that is an uncle or cousin of the source group, rather than a direct ancestor or descendant. Trees with only multiple nodes at the lowest tier (or nowhere) are unaffected.

## Which versions are affected by DRUPAL-CONTRIB-2021-003?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/subgroup` | Packagist:https://packages.drupal.org/8 | From 1.0.0 to 1.0.0 | None |

## How do I fix DRUPAL-CONTRIB-2021-003?

No fix has been published for DRUPAL-CONTRIB-2021-003 yet. Limit exposure of the affected software until one is available.

## Is DRUPAL-CONTRIB-2021-003 being exploited?

There is no known exploitation of DRUPAL-CONTRIB-2021-003 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for DRUPAL-CONTRIB-2021-003 and fix it if it is affected.

What it is: DRUPAL-CONTRIB-2021-003 is a missing authorization vulnerability in drupal/subgroup, published on 27 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of DRUPAL-CONTRIB-2021-003 in the wild and no public exploit code.

Affected product: drupal/subgroup. 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/DRUPAL-CONTRIB-2021-003/ (Markdown: https://insights.sbomify.com/DRUPAL-CONTRIB-2021-003/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/DRUPAL-CONTRIB-2021-003

---
From sbomify Insights: https://insights.sbomify.com/DRUPAL-CONTRIB-2021-003/
Summaries are generated and may contain mistakes; the official description above is the record.