Security advisory

Unitree UPK firmware-update format uses hardcoded cryptographic keys

The CNA identifies hardcoded cryptographic keys in Unitree's UPK firmware-update format, with a component range through 20260226v1. It describes apparent applicability across Unitree offerings as of February 26, 2026 but gives no model-specific firmware range. The researcher's disclosure lists G1 firmware packages; this entry retains the CVE's UPK component scope. The CNA reports no documented method of inserting modified updates without the owner's knowledge.

Records last verified Oct 13, 2026 · Send a correction

CVE IDs
CVE-2026-1442
Class
Hardcoded Credentials
CVSS / assessor
7.8 · CVSS 3.1 · Austin Hackers Anonymous CNA
Vendor response
Unknown

Affected models, versions and components

  • Unitree UPK firmware-update formatComponent scope; individual models not established

    UPK format through 20260226v1; no model-specific firmware range stated by the CNA

    Component: UPK firmware generation and extraction

Disclosure and response timeline

The record has one response or remediation date. It does not supply separate dates for every vendor communication and fix.

  1. Public disclosure

    Reported by Andreas Makris aka Bin4ry; coordinated by todb (CVE record credits).

  2. Vendor response / remediation update (as recorded)

    Date not stated

    Unknown. The CNA and researcher say the vendor was not notified. No vendor response or fixed UPK format is identified in these disclosures.

  3. Fix

    Separate fix date not recorded

    No fixed version identified in the recorded sources.

What owners should do

No owner-facing recommendation is recorded in the primary disclosure. Consult the cited advisory and vendor support for guidance on your exact configuration.

Fixed version (as stated): No fixed version identified.

The CNA and researcher say the vendor was not notified. No vendor response or fixed UPK format is identified in these disclosures.

How to read this ledger

We include official CVE records, vendor advisories, CERT/CISA notices and researchers’ own disclosures. CVSS is attributed to its published assessor, including the named CVE Numbering Authority (CNA), with the version from the recorded vector. A CNA score is not an NVD assessment. An unpublished score stays unknown.

Affected versions, variants, component scope and fix qualifications retain the disclosure’s wording. A reported patch is not an independent retest. Disputed findings show the researcher and vendor positions together. We publish no exploit instructions or payloads.

Counts describe curated advisory records; several records may come from one disclosure. Coverage is incomplete and is not a security ranking. An absent record does not establish that a robot has no vulnerabilities.

Evidence

Sources

  1. [s1] CVE-2026-1442 — CVE Program record ↗

    CVE Program / Austin Hackers Anonymous CNA · database · published Feb 27, 2026 · accessed Oct 13, 2026

  2. [s2] CVE-2026-1442: Unitree UPK files Hard-Coded Key ↗

    Austin Hackers Anonymous · other · published Feb 26, 2026 · accessed Oct 13, 2026

  3. [s3] UniTEABag — researcher disclosure of the Unitree UPK firmware format ↗

    Andreas Makris (Bin4ry) · other · accessed Oct 13, 2026

Other advisory records

Trackers