# GHSA-pr99-c33p-fwf6: Drupal core Denial of Service

> An attacker can corrupt cached data by visiting install.php, causing site impairment until caches are rebuilt.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 15 May 2024

## What is GHSA-pr99-c33p-fwf6?

GHSA-pr99-c33p-fwf6 is a denial of service vulnerability in drupal/core, published on 15 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A visit to install.php can cause cached data to become corrupted. This could cause a site to be impaired until caches are rebuilt.

## Which versions are affected by GHSA-pr99-c33p-fwf6?

4 open source packages ship an affected version, including drupal/core.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/core` | Packagist | From 8.0.0 | 8.7.11 |
| `drupal/core` | Packagist | From 8.0.0 | 8.7.11 |
| `drupal/core` | Packagist | From 8.8.0 | 8.8.1 |
| `drupal/core` | Packagist | From 8.8.0 | 8.8.1 |

## How do I fix GHSA-pr99-c33p-fwf6?

Upgrade drupal/core to a fixed version for your release line: 8.7.11 or 8.8.1.

## Is GHSA-pr99-c33p-fwf6 being exploited?

There is no known exploitation of GHSA-pr99-c33p-fwf6 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-pr99-c33p-fwf6 and fix it if it is affected.

What it is: GHSA-pr99-c33p-fwf6 is a denial of service vulnerability in drupal/core, published on 15 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of GHSA-pr99-c33p-fwf6 in the wild and no public exploit code.

Affected packages and fixed versions:
- drupal/core (Packagist): affected from 8.0.0; fixed in 8.7.11
- drupal/core (Packagist): affected from 8.0.0; fixed in 8.7.11
- drupal/core (Packagist): affected from 8.8.0; fixed in 8.8.1
- drupal/core (Packagist): affected from 8.8.0; fixed in 8.8.1

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/GHSA-pr99-c33p-fwf6/ (Markdown: https://insights.sbomify.com/GHSA-pr99-c33p-fwf6/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-pr99-c33p-fwf6

---
From sbomify Insights: https://insights.sbomify.com/GHSA-pr99-c33p-fwf6/
Summaries are generated and may contain mistakes; the official description above is the record.