{"id":"CVE-2026-27652","aliases":["EUVD-2026-8940","GHSA-xc6x-6xp8-3frw"],"status":"published","title":"CloudCharge cloudcharge.se Insufficient Session Expiration","description":"The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but allows multiple endpoints to connect using the \nsame session identifier. This implementation results in predictable \nsession identifiers and enables session hijacking or shadowing, where \nthe most recent connection displaces the legitimate charging station and\n receives backend commands intended for that station. This vulnerability\n may allow unauthorized users to authenticate as other users or enable a\n malicious actor to cause a denial-of-service condition by overwhelming \nthe backend with valid session requests.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00356,"percentile":0.2974,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-613"],"published":"2026-02-26T23:36:33Z","modified":"2026-06-17T10:27:27Z","products":[{"vendor":"cloudcharge","product":"cloudcharge.se"}],"references":[{"url":"https://cloudcharge.tech/support/contact/","tags":["Product"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-03","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-03.json","tags":["Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27652"},{"url":"https://cloudcharge.tech/support/contact"},{"url":"https://github.com/advisories/GHSA-xc6x-6xp8-3frw"}],"sources":{"cve":[{"id":"CVE-2026-27652","title":"CloudCharge cloudcharge.se Insufficient Session Expiration","description":"The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but allows multiple endpoints to connect using the \nsame session identifier. This implementation results in predictable \nsession identifiers and enables session hijacking or shadowing, where \nthe most recent connection displaces the legitimate charging station and\n receives backend commands intended for that station. This vulnerability\n may allow unauthorized users to authenticate as other users or enable a\n malicious actor to cause a denial-of-service condition by overwhelming \nthe backend with valid session requests.","status":"published","published":"2026-02-26T23:36:33.131Z","modified":"2026-03-31T14:18:01.596Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:19:48.826324Z"}],"euvd":[{"id":"EUVD-2026-8940","description":"The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but allows multiple endpoints to connect using the \nsame session identifier. This implementation results in predictable \nsession identifiers and enables session hijacking or shadowing, where \nthe most recent connection displaces the legitimate charging station and\n receives backend commands intended for that station. This vulnerability\n may allow unauthorized users to authenticate as other users or enable a\n malicious actor to cause a denial-of-service condition by overwhelming \nthe backend with valid session requests.","status":"published","published":"2026-02-26T23:36:33Z","modified":"2026-03-31T14:18:01Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:25:24.891983Z"}],"ghsa":[{"id":"GHSA-xc6x-6xp8-3frw","title":"The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but...","description":"The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but allows multiple endpoints to connect using the \nsame session identifier. This implementation results in predictable \nsession identifiers and enables session hijacking or shadowing, where \nthe most recent connection displaces the legitimate charging station and\n receives backend commands intended for that station. This vulnerability\n may allow unauthorized users to authenticate as other users or enable a\n malicious actor to cause a denial-of-service condition by overwhelming \nthe backend with valid session requests.","status":"published","published":"2026-02-27T00:31:46Z","modified":"2026-03-05T21:31:36Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T15:06:28.064128Z"}],"nvd":[{"id":"CVE-2026-27652","description":"The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but allows multiple endpoints to connect using the \nsame session identifier. This implementation results in predictable \nsession identifiers and enables session hijacking or shadowing, where \nthe most recent connection displaces the legitimate charging station and\n receives backend commands intended for that station. This vulnerability\n may allow unauthorized users to authenticate as other users or enable a\n malicious actor to cause a denial-of-service condition by overwhelming \nthe backend with valid session requests.","status":"published","published":"2026-02-27T00:16:57.9Z","modified":"2026-06-17T10:27:27.927Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:12:07.027269Z"}]}}