# CVE-2026-107450: Missing authorization in Stump

> Authenticated users can modify or delete other users' smart lists due to missing creator checks in GraphQL mutations.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L`)
- **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:** 8 Oct 2026
- **Updated:** 8 Oct 2026
- **Also known as:** GHSA-2w7f-m7xm-pw66

## What is CVE-2026-107450?

CVE-2026-107450 is a medium-severity missing authorization vulnerability in stumpapp Stump, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In Stump through 0.1.10, the updateSmartList and deleteSmartList GraphQL mutations (crates/graphql/src/mutation/smart_lists.rs) depend only on the shared AccessSmartList permission and resolve the target list at Reader access (lacking a creator check). Any authenticated user with that permission can overwrite, delete, or take over another user's smart list. (updateSmartList sets creatorId to the caller identity, and can set visibility to PRIVATE, locking out the original owner.) NOTE: this is unrelated to the graphql crate on crates.io.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-107450?


## How do I fix CVE-2026-107450?

No fix has been published for CVE-2026-107450 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-107450 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107450 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-107450 and fix it if it is affected.

What it is: CVE-2026-107450 is a medium-severity missing authorization vulnerability in stumpapp Stump, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107450 exists.

Affected product: stumpapp Stump. 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-2026-107450/ (Markdown: https://insights.sbomify.com/CVE-2026-107450/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-107450
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-107450
- OSV: https://osv.dev/vulnerability/CVE-2026-107450

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-107450/
Summaries are generated and may contain mistakes; the official description above is the record.