CVE-2026-29796

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An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend."}]}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-08"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-08.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "baseSeverity": "CRITICAL", "baseScore": 9.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N"}}], "solutions": [{"lang": "en", "value": "IGL-Technologies has updated eParking's OCPP servers to reduce the risks posed by the vulnerability. These updates implemented the following security controls: 1-Enforce modern security profiles and stronger authentication. 2-Device level whitelisting was implemented to ensure authorized devices connect. 3-Rate limiting controls prevent excessive requests and reduces denial-of-service attacks. 4-Enhanced automated monitoring and alerting to detection abnormal network activity.\n\n\n\n\n\n\n\n\nDevices using the encrypted deployment of eParking's OCPP servers or \nIGL-Technologies proprietary eTolppa protocol are not impacted by these \nvulnerabilities.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div><div>\n<div><div><span>IGL-Technologies has updated eParking's OCPP servers to reduce the risks posed by the vulnerability. These updates implemented the following security controls: 1-Enforce modern security profiles and stronger authentication. 2-Device level whitelisting was implemented to ensure authorized devices connect. 3-Rate limiting controls prevent excessive requests and reduces denial-of-service attacks. 4-Enhanced automated monitoring and alerting to detection abnormal network activity.</span></div><div><span><br></span></div></div>\n\nDevices using the encrypted deployment of eParking's OCPP servers or \nIGL-Technologies proprietary eTolppa protocol are not impacted by these \nvulnerabilities.&nbsp;\n\n\n\n<br></div></div>"}]}, {"lang": "en", "value": "To prevent this in the future IGL-Technologies will continue \nvulnerability monitoring under their ISO\u202f27001:2022 security program and\n tighten security requirements for future third\u2011party OCPP hardware \napprovals.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "To prevent this in the future IGL-Technologies will continue \nvulnerability monitoring under their ISO\u202f27001:2022 security program and\n tighten security requirements for future third\u2011party OCPP hardware \napprovals.\n\n<br>"}]}, {"lang": "en", "value": "For more information please contact the IGL-Technologies security team at this email address: security@igl.fi.\n mailto:security@igl.fi", "supportingMedia": [{"type": "text/html", "base64": false, "value": "For more information please contact the IGL-Technologies security team at this email address: security@igl.fi.<br><a href=\"mailto:security@igl.fi\">mailto:security@igl.fi</a>"}]}], "credits": [{"lang": "en", "value": "Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA.", "type": "finder"}], "source": {"advisory": "ICSA-26-078-08", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-23T14:24:14.606501Z", "id": "CVE-2026-29796", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-23T14:29:03.578Z"}}]}}

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These updates implemented the following security controls: 1-Enforce modern security profiles and stronger authentication. 2-Device level whitelisting was implemented to ensure authorized devices connect. 3-Rate limiting controls prevent excessive requests and reduces denial-of-service attacks. 4-Enhanced automated monitoring and alerting to detection abnormal network activity.\n\n\n\n\n\n\n\n\nDevices using the encrypted deployment of eParking's OCPP servers or \nIGL-Technologies proprietary eTolppa protocol are not impacted by these \nvulnerabilities.", "supportingMedia": [{"type": "text/html", "value": "<div><div>\n<div><div><span>IGL-Technologies has updated eParking's OCPP servers to reduce the risks posed by the vulnerability. 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "eParking.fi", "vendor": "IGL-Technologies", "versions": [{"status": "affected", "version": "All versions", "versionType": "custom"}]}], "source": "ics-cert@hq.dhs.gov"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:igl:eparking.fi:-:*:*:*:*:*:*:*", "matchCriteriaId": "93828603-B375-4CEE-80BE-49966DC81197", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend."}, {"lang": "es", "value": "Los puntos finales de WebSocket carecen de mecanismos de autenticaci\u00f3n adecuados, lo que permite a los atacantes realizar suplantaci\u00f3n de estaci\u00f3n no autorizada y manipular datos enviados al backend. Un atacante no autenticado puede conectarse al punto final WebSocket de OCPP utilizando un identificador de estaci\u00f3n de carga conocido o descubierto, luego emitir o recibir comandos OCPP como un cargador leg\u00edtimo. Dado que no se requiere autenticaci\u00f3n, esto puede llevar a una escalada de privilegios, control no autorizado de la infraestructura de carga y corrupci\u00f3n de los datos de la red de carga reportados al backend."}], "id": "CVE-2026-29796", "lastModified": "2026-06-17T10:29:54.233", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.4, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.5, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "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:H/VI:H/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-29796", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-23T14:24:14.606501Z", "version": "2.0.3"}}]}, "published": "2026-03-20T23:16:43.410", "references": [{"source": "ics-cert@hq.dhs.gov", "tags": ["Not Applicable"], "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-08.json"}, {"source": "ics-cert@hq.dhs.gov", "tags": ["Not Applicable"], "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-08"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "eParking.fi", "source": "cna", "vendor": "IGL-Technologies"}, "product": "eparking.fi", "vendor": "igl-technologies"}], "analysis": {"en": {"generated_at": "2026-03-21T06:43:15.837790+00:00", "value": {"mitigation_remediation": ["Apply the IGL\u2011Technologies update to eParking\u2019s OCPP servers, which enables modern security profiles and stronger authentication.", "Verify that the WebSocket endpoints now require authentication and that only authorized charging stations can connect.", "Disable or isolate the eTolppa protocol if not required, as it remains unaffected by this vulnerability.", "Implement device\u2011level whitelisting to restrict access to approved charging stations.", "Enable rate limiting to protect against excessive request volume.", "Monitor network traffic for abnormal activity and set alerts on suspicious connections."], "summary": {"action": "Immediate Patch", "impact": "Unauthorized Control of Charging Infrastructure"}, "threat_synthesis": {"affected_systems": "Affected products belong to IGL\u2011Technologies: the eParking.fi platform, specifically the OCPP servers that expose WebSocket endpoints. Versions before the vendor\u2019s updated release, which added security controls, are impacted. Devices that deploy the encrypted eParking OCPP servers or use IGL\u2019s proprietary eTolppa protocol are not affected, as the vulnerability targets only the plain OCPP WebSocket interface.", "description_and_impact": "The vulnerability exists in the WebSocket endpoints of IGL\u2011Technologies eParking.fi\u2019s OCPP servers. Without proper authentication, an unauthenticated attacker can connect to the exposed endpoint using a known charging station identifier. This allows the attacker to issue or intercept OCPP commands as if they were a legitimate charger, enabling them to manipulate charging data, alter state, or disrupt service. The consequence is privilege escalation against the charging network, potentially causing unauthorized control of infrastructure and corruption of data reported to the backend.", "risk_and_exploitability": "The CVSS score of 9.3 indicates a high severity vulnerability. No EPSS score is available, and the issue has not been listed in the CISA KEV catalog. Attackers can exploit this flaw remotely by simply opening a WebSocket connection to the server, requiring no credentials. Because the attack path is straightforward and the scope covers the entire charging network, the risk remains high. The vendor has released a patch that mitigates the issue, but until it is applied the vulnerability remains fully exploitable."}}}}, "created": "2026-03-23T09:52:09.111244+00:00", "updated": "2026-03-25T14:34:00.938939+00:00", "vendors": ["igl-technologies", "igl-technologies$PRODUCT$eparking.fi"]}