# CVE-2026-25599: Missing authentication and clear‑text data transmission affecting Orca heat pumps

> Attackers can inject malicious code into the Orca user portal via unauthenticated heat pump devices, leading to cookie theft and account compromise.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 1 Jun 2026
- **Updated:** 1 Jun 2026
- **Also known as:** GHSA-m272-v6vr-r4ff

## What is CVE-2026-25599?

CVE-2026-25599 is a medium-severity cross-site scripting vulnerability in Orca heat pump, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Missing authentication and clear‑text transmission of data from the heat pumps to the control server, combined with the absence of input validation on aggregated data, can lead to stored XSS that enables theft of cookies from the pump’s web control interface. Older Orca heat pump devices communicating with the Orca server over an 
unencrypted and unauthenticated HTTP connection on a non-secure port specifically enable an
 attacker to impersonate a legitimate device and inject malicious 
payloads. This enables the insertion of harmful code directly
 into the Orca user portal, potentially compromising user accounts, 
exposing sensitive information, and allowing further unauthorized 
actions within the portal.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-319 (Cleartext Transmission of Sensitive Information), CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-25599?


## How do I fix CVE-2026-25599?

No fix has been published for CVE-2026-25599 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25599 being exploited?

There is no known exploitation of CVE-2026-25599 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25599 and fix it if it is affected.

What it is: CVE-2026-25599 is a medium-severity cross-site scripting vulnerability in Orca heat pump, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-25599 in the wild and no public exploit code.

Affected product: Orca heat pump. 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-2026-25599/ (Markdown: https://insights.sbomify.com/CVE-2026-25599/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25599
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25599
- OSV: https://osv.dev/vulnerability/CVE-2026-25599

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25599/
Summaries are generated and may contain mistakes; the official description above is the record.