{"id":"CVE-2026-20895","state":"PUBLISHED","title":"EV2GO ev2go.io 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.","publishedAt":"2026-02-26T23:48:03.827Z","updatedAt":"2026-03-05T20:10:55.114Z","severity":{"score":6.9,"label":"Medium","version":"4.0","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","source":"icscert"},"assigner":"icscert","products":["EV2GO ev2go.io"],"affected":[{"vendor":"EV2GO","product":"ev2go.io","defaultStatus":"unaffected","versions":[{"version":"All versions","status":"affected"}]}],"references":["https://ev2go.io/","https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-04","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-04.json"],"weaknesses":["CWE-613"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20895.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20895","state":"PUBLISHED","datePublished":"2026-02-26T23:48:03.827Z","dateUpdated":"2026-03-05T20:10:55.114Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-02-23T23:41:36.739Z"},"containers":{"cna":{"title":"EV2GO ev2go.io Insufficient Session Expiration","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"EV2GO","product":"ev2go.io","defaultStatus":"unaffected","versions":[{"version":"All versions","status":"affected"}]}],"references":[{"url":"https://ev2go.io/"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-04"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-04.json"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-613","description":"CWE-613","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-03-05T20:10:55.114Z"},"credits":[{"lang":"en","type":"finder","value":"Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA."}],"source":{"advisory":"ICSA-26-057-04","discovery":"EXTERNAL"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"EV2GO did not respond to CISA's request for coordination. Contact EV2GO \nusing their contact page here: <a target=\"_blank\" rel=\"nofollow\" href=\"https://ev2go.io/\">https://ev2go.io/</a> for more information.\n\n<br>"}],"value":"EV2GO did not respond to CISA's request for coordination. Contact EV2GO \nusing their contact page here:  https://ev2go.io/  for more information."}],"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-02T20:37:39.966119Z","id":"CVE-2026-20895","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-02T20:37:46.473Z"}}]}}}