# CVE-2026-53548: Termix: IDOR — Authenticated user can fetch SSH passwords for hosts owned by other users

> Authenticated users can retrieve other users' SSH passwords via IDOR, enabling unauthorized access to managed systems.

- **Severity:** Critical 9.6 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A: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 Aug 2026
- **Updated:** 21 Aug 2026
- **Also known as:** GHSA-j6h8-mww6-pgw6

## What is CVE-2026-53548?

CVE-2026-53548 is a critical missing authorization vulnerability in Termix-SSH Termix, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.6.1, the GET /host/db/host/:id/password endpoint in src/backend/database/routes/host.ts accepts an authenticated user's numeric host ID and the field=password or field=sudoPassword query without enforcing host ownership during credential resolution. A failed requester-scoped lookup can resolve the host with the owner's context and return the owner's plaintext credential, allowing any authenticated user with a valid JWT to enumerate sequential hosts.id values and retrieve SSH or sudo passwords belonging to other users. The disclosed credentials can then be used to access and control managed systems outside the Termix instance. This issue is fixed in version 2.6.1.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-53548?


## How do I fix CVE-2026-53548?

No fix has been published for CVE-2026-53548 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-53548 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53548 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-53548 and fix it if it is affected.

What it is: CVE-2026-53548 is a critical missing authorization vulnerability in Termix-SSH Termix, published on 19 Aug 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-2026-53548 exists.

Affected product: Termix-SSH Termix. 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-2026-53548/ (Markdown: https://insights.sbomify.com/CVE-2026-53548/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-53548
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-53548
- OSV: https://osv.dev/vulnerability/CVE-2026-53548

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-53548/
Summaries are generated and may contain mistakes; the official description above is the record.