1Panel-dev CordysCRM up to 1.7.1 SSE /sse/subscribe userId access control

Summaryinfo

A vulnerability was found in 1Panel-dev CordysCRM up to 1.7.1. It has been rated as critical. This impacts an unknown function of the file /sse/subscribe of the component SSE. Performing a manipulation of the argument userId results in access control. This vulnerability is reported as CVE-2026-63647. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in 1Panel-dev CordysCRM up to 1.7.1. This affects an unknown function of the file /sse/subscribe of the component SSE. The manipulation of the argument userId with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

CordysCRM is an open source AI-powered customer relationship management system that supports private deployment. Prior to 1.7.2, SseController exposes the anonymous /sse/subscribe, /sse/broadcast, and /sse/close endpoints because ShiroFilter.addPublicPathFilters permits the SSE paths, and the endpoints trust the caller-controlled userId instead of deriving an identity from an authenticated principal. An unauthenticated caller can use /sse/subscribe to read another user's workflow events, approval requests, mentions, and alerts, use /sse/broadcast to inject SYSTEM_HEARTBEAT messages into another user's stream, or use /sse/close to terminate another user's channel. This vulnerability is fixed in 1.7.2.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-63647 since 07/17/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 1.7.2 eliminates this vulnerability.

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Productinfo

Vendor

• 1Panel-dev

Name

• CordysCRM

Version

• 1.7.0
• 1.7.1

Website

• Product: https://github.com/1Panel-dev/CordysCRM/

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