CVE-2026-27652
Published: 27 February 2026
Summary
CVE-2026-27652 is a high-severity Insufficient Session Expiration (CWE-613) vulnerability in Cloudcharge Cloudcharge.Se. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 16.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Locks the device (typically after inactivity) until re-authentication, addressing insufficient session expiration by preventing indefinite access.
Automatically terminating sessions after a defined period directly enforces session expiration, preventing indefinite session lifetimes that attackers can exploit.
Re-authentication after inactivity or time-based triggers prevents indefinite use of potentially hijacked or stale sessions.
Terminating sessions and network connections upon completion prevents insufficient session expiration.
Directly enforces termination of network sessions after inactivity or end-of-session, preventing indefinite session lifetime.
Consistent clocks across systems allow session expiration and timeout enforcement to function as intended in distributed environments.
When the non-persistent artifact is a session or connection, mandatory termination implements the missing expiration that CWE-613 describes.
Timed refresh of session-related information or on-demand generation plus deletion implements proper session expiration.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerability in network-accessible WebSocket backend with weak/predictable session IDs directly enables exploitation of public-facing applications (T1190) and facilitates remote service session hijacking/shadowing by allowing unauthorized takeover of valid sessions (T1563).
NVD Description
The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection…
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displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.
Deeper analysisAI
CVE-2026-27652 is a vulnerability in the WebSocket backend for charging station management systems, where charging station identifiers are used to uniquely associate sessions, but the implementation permits multiple endpoints to connect using the same session identifier. This results in predictable session identifiers, facilitating session hijacking or shadowing, in which the most recent connection displaces the legitimate charging station and receives backend commands intended for it. The issue is rated with a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) and maps to CWE-613.
Attackers with network access can exploit this vulnerability without privileges or user interaction. An unauthorized user may authenticate as other users by hijacking sessions, gaining limited access to confidential information, modifying data, or executing commands on behalf of legitimate charging stations. Additionally, a malicious actor can cause a denial-of-service condition by overwhelming the backend with valid session requests, displacing legitimate connections.
CISA has published ICS Advisory ICSA-26-057-03 detailing the vulnerability, available at https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-03, along with a corresponding CSAF file at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-03.json. Vendor support is referenced at https://cloudcharge.tech/support/contact/.
Details
- CWE(s)