# CVE-2026-77146: Broken Access Control in extension "femanager" (femanager)

> Unauthenticated attackers can reset passwords and re-enable arbitrary frontend user accounts due to broken access control in the invitation controller.

- **Severity:** High 8.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Aug 2026
- **Updated:** 25 Aug 2026
- **Also known as:** GHSA-ccrq-xx5g-x98r

## What is CVE-2026-77146?

CVE-2026-77146 is a high-severity missing authorization vulnerability in TYPO3 Extension "femanager", published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The extension's invitation controller fails to stop processing after redirecting on invalid input (missing hash, non-existent, disabled, or deleted users), allowing an unauthenticated attacker to set a new password for and re-enable an arbitrary existing frontend user account. This vulnerability is only present in the 8.x versions of the extension.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-77146?


## How do I fix CVE-2026-77146?

No fix has been published for CVE-2026-77146 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-77146 being exploited?

There is no known exploitation of CVE-2026-77146 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-77146 and fix it if it is affected.

What it is: CVE-2026-77146 is a high-severity missing authorization vulnerability in TYPO3 Extension "femanager", published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-77146 in the wild and no public exploit code.

Affected product: TYPO3 Extension "femanager". 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-2026-77146/ (Markdown: https://insights.sbomify.com/CVE-2026-77146/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-77146
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-77146
- OSV: https://osv.dev/vulnerability/CVE-2026-77146

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-77146/
Summaries are generated and may contain mistakes; the official description above is the record.