# CVE-2026-28254: Missing Authorization vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge

> Unauthenticated attackers can access sensitive information via unprotected APIs in Trane Tracer SC, SC+, and Concierge building automation systems.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/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:** 12 Mar 2026
- **Updated:** 12 Mar 2026
- **Also known as:** GHSA-5f3g-p55x-j456

## What is CVE-2026-28254?

CVE-2026-28254 is a medium-severity missing authorization vulnerability in Trane Tracer Concierge, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Missing Authorization vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge could allow an unauthenticated attacker to access sensitive information through unprotected APIs.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-28254?

It affects 3 products.


Products: Trane Tracer Concierge, Trane Tracer Sc\+ Firmware, Trane Tracer Sc Firmware.

## How do I fix CVE-2026-28254?

No fix has been published for CVE-2026-28254 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-28254 being exploited?

There is no known exploitation of CVE-2026-28254 in the wild and no public exploit code.

## Other vulnerabilities in Trane Tracer Concierge

- [CVE-2021-38450](https://insights.sbomify.com/CVE-2021-38450/): Trane Tracer Code Injection (critical 9.9)
- [CVE-2026-28252](https://insights.sbomify.com/CVE-2026-28252/): Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge (critical 9.2)
- [CVE-2026-28253](https://insights.sbomify.com/CVE-2026-28253/): Memory Allocation with Excessive Size Value vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge (high 8.7)
- [CVE-2026-28255](https://insights.sbomify.com/CVE-2026-28255/): Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge (high 8.2)
- [CVE-2026-28256](https://insights.sbomify.com/CVE-2026-28256/): Use of Hard-coded Credentials vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-28254 and fix it if it is affected.

What it is: CVE-2026-28254 is a medium-severity missing authorization vulnerability in Trane Tracer Concierge, published on 12 Mar 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-2026-28254 in the wild and no public exploit code.

Affected product: Trane Tracer Concierge. 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-2026-28254/ (Markdown: https://insights.sbomify.com/CVE-2026-28254/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-28254
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-28254
- OSV: https://osv.dev/vulnerability/CVE-2026-28254

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-28254/
Summaries are generated and may contain mistakes; the official description above is the record.