# CVE-2026-31874: Taskosaur Improper Role Assignment via Parameter Manipulation in User Registration

> An attacker can register a SUPER_ADMIN account by manipulating the role parameter during user registration, gaining full administrative control.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Mar 2026
- **Updated:** 12 Mar 2026
- **Also known as:** GHSA-r6gj-4663-p5mr

## What is CVE-2026-31874?

CVE-2026-31874 is a critical vulnerability in Taskosaur, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Taskosaur is an open source project management platform with conversational AI for task execution in-app. In 1.0.0, the application does not properly validate or restrict the role parameter during the user registration process. An attacker can manually modify the request payload and assign themselves elevated privileges. Because the backend does not enforce role assignment restrictions or ignore client-supplied role parameters, the server accepts the manipulated value and creates the account with SUPER_ADMIN privileges. This allows any unauthenticated attacker to register a fully privileged administrative account.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-31874?

It affects 1 product.


Products: Taskosaur Taskosaur.

## How do I fix CVE-2026-31874?

No fix has been published for CVE-2026-31874 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-31874 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-31874 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-31874 and fix it if it is affected.

What it is: CVE-2026-31874 is a critical vulnerability in Taskosaur, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-31874 exists.

Affected product: Taskosaur. 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-2026-31874/ (Markdown: https://insights.sbomify.com/CVE-2026-31874/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-31874
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31874
- OSV: https://osv.dev/vulnerability/CVE-2026-31874

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-31874/
Summaries are generated and may contain mistakes; the official description above is the record.