CVE-2026-20781Disclosure(cloudcharge / cloudcharge.se)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

cloudcharge CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

Other references

https://cloudcharge.tech/support/contact/

Weakness type (CWE)

CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

cloudcharge.se

Threat summary

5 mentions across 3 observed days
Momentum state: stable

What's happening

Technical details provided in 5 signals
Disclosure: 5 classified signals
Peaked 2d ago at 3 mentions (2026-02-27); latest day: 1
5 total mentions across 3 days

Affected systems

Vendors

cloudcharge

Products

cloudcharge.se

Deep dive

Activity timeline5 mentions / 3d

Signal classification1 categories

Disclosure

5100.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-02-27	3	Disclosure3
2026-03-03	1	Disclosure1
2026-03-04	1	Disclosure1

Full discourse5 posts

CRAC Learning - Tech@cracbot218d
Disclosure
CVE-2026-20781 (CVSS:9.4, CRITICAL) is Analyzed. WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersona..https://nvd.nist.gov/vuln/detail/CVE-2026-20781 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre
Post summary
The post references CVE-2026-20781, noting its critical CVSS score and that WebSocket endpoints lack authentication, allowing unauthorized impersonation, but does not mention PoC, exploit, patch, or active exploitation.
0000018
173 followersView on X
CRAC Learning - Tech@cracbot219d
Disclosure
CVE-2026-20781 (CVSS:9.4, CRITICAL) is Analyzed. WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersona..https://nvd.nist.gov/vuln/detail/CVE-2026-20781 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre
Post summary
The post highlights CVE-2026-20781’s critical severity and lack of authentication on WebSocket endpoints, allowing unauthorized impersonation, but provides no PoC, exploit, patch, or evidence of active exploitation.
0000028
173 followersView on X
CVE@CVEnew223d
Disclosure
CVE-2026-20781 WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend.… https://www.cve.org/CVERecord?id=CVE-2026-20781
Post summary
The post announces CVE‑2026‑20781, describing an authentication‑bypass flaw in WebSocket endpoints that allows attackers to impersonate stations and alter data, with no evidence of exploitation, PoC, or patch information.
00000132
56.6K followersView on X
CVEFind.com@CveFindCom224d
Disclosure
[CVE-2026-20781: CRITICAL] WebSocket endpoints without proper authentication expose systems to unauthorized access, allowing attackers to impersonate stations and manipulate backend data, leading to serious ...#cve,CVE-2026-20781,#cybersecurity https://cvefind.com/CVE-2026-20781
Post summary
CVE-2026-20781 is a critical vulnerability that permits unauthenticated attackers to impersonate stations via vulnerable WebSocket endpoints, enabling manipulation of backend data.
0000046
585 followersView on X
CVETodo@CveTodo224d
Disclosure
**CVE-2026-20781** pertains to a critical security flaw in systems utilizing WebSocket endpoints for Open Charge Point Protocol (OCPP) communication. The core issue is the absence of proper authentication mechanisms on WebSocket endpoints, which allows unauthenticated attackers to connect, impersonate charging stations, and manipulate data or commands sent to the backend infrastructure. #Cybersecurity #CVE #CriticalCVE #CriticalVulnerability #RemoteCodeExecution #PrivilegeEscalation #DDoS https://cvetodo.com/cve/CVE-2026-20781
Post summary
This post announces CVE-2026-20781, a critical authentication flaw in OCPP WebSocket endpoints that lets unauthenticated attackers impersonate charging stations and alter data or commands.
0000036
20 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	cloudcharge	cloudcharge.se	-	-	-

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What researchers are saying

CVE-2026-20781

CVETodo[verified]@CveTodoDisclosure

This post announces CVE-2026-20781, a critical authentication flaw in OCPP WebSocket endpoints that lets unauthenticated attackers impersonate charging stations and alter data or commands.

CRAC Learning - Tech@cracbotDisclosure

The post references CVE-2026-20781, noting its critical CVSS score and that WebSocket endpoints lack authentication, allowing unauthorized impersonation, but does not mention PoC, exploit, patch, or active exploitation.

CRAC Learning - Tech@cracbotDisclosure

The post highlights CVE-2026-20781’s critical severity and lack of authentication on WebSocket endpoints, allowing unauthorized impersonation, but provides no PoC, exploit, patch, or evidence of active exploitation.

CVE@CVEnewDisclosure

The post announces CVE‑2026‑20781, describing an authentication‑bypass flaw in WebSocket endpoints that allows attackers to impersonate stations and alter data, with no evidence of exploitation, PoC, or patch information.

CVEFind.com@CveFindComDisclosure

CVE-2026-20781 is a critical vulnerability that permits unauthenticated attackers to impersonate stations via vulnerable WebSocket endpoints, enabling manipulation of backend data.