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CVE

CVE-2026-63647

CordysCRM SSE Notification Stream Hijack via `/sse/subscribe`
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CVE

CVE-2026-63647

CordysCRM SSE Notification Stream Hijack via `/sse/subscribe`

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
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
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/1Panel-dev/CordysCRM/releases/tag/v1.7.2, https://github.com/1Panel-dev/CordysCRM/security/advisories/GHSA-9qg8-cm35-xqp4, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63647.json, https://nvd.nist.gov/vuln/detail/CVE-2026-63647, https://github.com/1Panel-dev/CordysCRM/commit/6cb81deb53434ae7792673c50312ff91685d7f9d, https://github.com/1Panel-dev/CordysCRM/pull/2719

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.00496%
EPSS Percentile
0.41299%
Introduced Version
0
Fix Available
d166d1b7049888029c13d9a9065fe2caf4800794

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