# CVE-2026-55228: Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project

> Authenticated project managers can bypass authorization checks to read and modify private projects they do not own.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:** 26 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** GHSA-2q2q-jr9g-v9rf, PYSEC-2026-3942

## What is CVE-2026-55228?

CVE-2026-55228 is a high-severity missing authorization vulnerability in WeblateOrg weblate, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-55228?

3 open source packages ship an affected version, including weblate and Weblate.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `weblate` | PyPI | All versions | 2026.7 |
| `weblate` | PyPI | All versions | 2026.7 |
| `Weblate` | PyPI | All versions | 2026.7 |

## How do I fix CVE-2026-55228?

Upgrade weblate to 2026.7 or later.

## Is CVE-2026-55228 being exploited?

There is no known exploitation of CVE-2026-55228 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-55228 and fix it if it is affected.

What it is: CVE-2026-55228 is a high-severity missing authorization vulnerability in WeblateOrg weblate, published on 26 Aug 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-2026-55228 in the wild and no public exploit code.

Affected packages and fixed versions:
- weblate (PyPI): affected all versions; fixed in 2026.7
- weblate (PyPI): affected all versions; fixed in 2026.7
- Weblate (PyPI): affected all versions; fixed in 2026.7

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-2026-55228/ (Markdown: https://insights.sbomify.com/CVE-2026-55228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-55228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-55228
- OSV: https://osv.dev/vulnerability/CVE-2026-55228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-55228/
Summaries are generated and may contain mistakes; the official description above is the record.