CVE-2026-25599

Missing authentication and clear‑text data transmission affecting Orca heat pumps

Published Jun 1, 2026 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
First Time appeared Orca Energy
Orca Energy orca Heat Pump
Orca Energy orca User Portal
Vendors & Products Orca Energy
Orca Energy orca Heat Pump
Orca Energy orca User Portal
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Missing authentication and clear‑text data transmission affecting Orca heat pumps
Weaknesses CWE-306
CWE-319
CWE-79
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ENISA
Published
Updated
Jun 1, 2026, 1:01 PM
Reserved
Feb 3, 2026, 7:24 AM
Status
Awaiting Analysis
Published
Jun 1, 2026, 11:16 AM
Modified
Jul 22, 2026, 7:10 AM