by Kastro
Paper/Archive/CVE-2026-26290

CVE-2026-26290

EV Energy ev.energy — EV Energy ev.energy Insufficient Session Expiration

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
36
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 32.2.322 × 206.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 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.

Affected

ProductAffectedFixed inSource
ev.energyAll versions–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
icscert (CNA)7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
icscert (CNA)6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refev.energy/en-usrefcisa.gov/news-events/ics-advisories/icsa-26-057-07refgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-07.json