Vulnerability details
CVE-2026-63647
CordysCRM SSE Notification Stream Hijack via `/sse/subscribe`
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| 1Panel-dev | CordysCRM | < 1.7.2 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://github.com/1Panel-dev/CordysCRM/pull/2719 x_refsource_MISC
- https://github.com/1Panel-dev/CordysCRM/commit/6cb81deb53434ae7792673c50312ff91685d7f9d x_refsource_MISC
- https://github.com/1Panel-dev/CordysCRM/releases/tag/v1.7.2 x_refsource_MISC
- https://github.com/1Panel-dev/CordysCRM/security/advisories/GHSA-9qg8-cm35-xqp4 x_refsource_CONFIRM
Details
- Published
- 2026-09-18
- Last updated
- 2026-09-18
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-306Missing Authentication for Critical Function
- CWE-639Authorization Bypass Through User-Controlled Key