# CVE-2026-10868: MISP user edit endpoint mass assignment vulnerability allows unauthorized user account modification

> An authenticated attacker can modify other user accounts by injecting IDs into edit requests, compromising account integrity and potentially escalating privileges.

- **Severity:** Critical 9.0 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:H/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:** 4 Jun 2026
- **Updated:** 4 Jun 2026
- **Also known as:** GHSA-h7wj-m45x-884x

## What is CVE-2026-10868?

CVE-2026-10868 is a critical missing authorization vulnerability in misp, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A mass assignment vulnerability exists in the MISP user edit functionality due to insufficient filtering of user-supplied fields in UsersController::edit(). When processing edit requests, the application accepted a user-controlled User.id value from request data. An authenticated attacker could craft a modified request containing another user identifier, potentially causing updates to be applied to an unintended user account. Depending on the editable fields and the attacker’s privileges, this could allow unauthorized modification of user account attributes and impact account integrity.

The issue was addressed by explicitly removing the User.id field from request data before processing the user edit operation.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-10868?


## How do I fix CVE-2026-10868?

No fix has been published for CVE-2026-10868 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-10868 being exploited?

There is no known exploitation of CVE-2026-10868 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-10868 and fix it if it is affected.

What it is: CVE-2026-10868 is a critical missing authorization vulnerability in misp, published on 4 Jun 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-2026-10868 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-2026-10868/ (Markdown: https://insights.sbomify.com/CVE-2026-10868/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-10868
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-10868
- OSV: https://osv.dev/vulnerability/CVE-2026-10868

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-10868/
Summaries are generated and may contain mistakes; the official description above is the record.