# CVE-2026-49344: Mercator has a Personal Identifiable Information Leak from Query Executor feature

> An authenticated user can bypass authorization checks in the Query Engine to read sensitive user data, including password hashes, via crafted JSON queries.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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:** 19 Jun 2026
- **Updated:** 22 Jun 2026

## What is CVE-2026-49344?

CVE-2026-49344 is a high-severity missing authorization vulnerability in sourcentis mercator, published on 19 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Mercator is an open source web application that enables mapping of the information system. Prior to version 2025.05.19, Mercator's Query Engine (`/admin/queries/execute`) accepts a JSON DSL (`from` / `select` / `filters` / `traverse` / `output`), translates it into an Eloquent query, and returns results as JSON. The controller method `QueryController::execute()` does not enforce an authorization gate, unlike `store()` and `massDestroy()` in the same controller which are correctly protected. As a result, any authenticated account — including the read-only Auditor role — can query models beyond its intended scope, including the `User` model. Additionally, the `password` column, although declared `$hidden`, is not excluded from filter predicates, which allows it to be used in `LIKE` conditions. The `schema()` and `schemaModel()` endpoints of the same controller are similarly unguarded. The Query Engine is read-only; integrity and availability are not affected. Version 2025.05.19 patches the issue.

Weakness: CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-49344?


## How do I fix CVE-2026-49344?

No fix has been published for CVE-2026-49344 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-49344 being exploited?

There is no known exploitation of CVE-2026-49344 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-49344 and fix it if it is affected.

What it is: CVE-2026-49344 is a high-severity missing authorization vulnerability in sourcentis mercator, published on 19 Jun 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-2026-49344 in the wild and no public exploit code.

Affected product: sourcentis mercator. 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-2026-49344/ (Markdown: https://insights.sbomify.com/CVE-2026-49344/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-49344
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49344
- OSV: https://osv.dev/vulnerability/CVE-2026-49344

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-49344/
Summaries are generated and may contain mistakes; the official description above is the record.