# CVE-2026-61474: MISP: Improper sharing group authorization check when adding attributes

> Authenticated users can bypass sharing group authorization checks when adding attributes, potentially exposing restricted sharing group relationships.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N`)
- **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:** 9 Jul 2026
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-x9x8-26mr-9wmm

## What is CVE-2026-61474?

CVE-2026-61474 is a medium-severity missing authorization vulnerability in misp, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An improper authorization check in MISP’s attribute creation endpoint allowed an authenticated user with permission to add attributes to submit a sharing_group_id without triggering the corresponding sharing group authorization check, as long as the attribute distribution value was not explicitly set to 4 — “sharing group”.

As a result, a user could reference or associate an attribute with a sharing group they were not authorized to use. This could lead to an access-control bypass affecting the integrity of attribute sharing metadata and potentially expose or misuse restricted sharing group relationships.

The patch changes the authorization logic so that the sharing group permission check is performed whenever a non-empty sharing_group_id is provided, regardless of the selected distribution value.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-61474?


## How do I fix CVE-2026-61474?

No fix has been published for CVE-2026-61474 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-61474 being exploited?

There is no known exploitation of CVE-2026-61474 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-61474 and fix it if it is affected.

What it is: CVE-2026-61474 is a medium-severity missing authorization vulnerability in misp, published on 9 Jul 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-2026-61474 in the wild and no public exploit code.

Affected product: misp. 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-2026-61474/ (Markdown: https://insights.sbomify.com/CVE-2026-61474/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-61474
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-61474
- OSV: https://osv.dev/vulnerability/CVE-2026-61474

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-61474/
Summaries are generated and may contain mistakes; the official description above is the record.