CVE-2026-108549

cc-connect through 1.5.0 Missing Authentication via MAX Webhook Sender Spoofing

State: Published
Severity: 9.2 Critical
Published: Oct 10, 2026
Updated: Oct 13, 2026
Reserved: Oct 10, 2026

Description

cc-connect through 1.5.0 contains a missing authentication vulnerability in the MAX platform adapter webhook mode in platform/max/max.go that accepts unauthenticated updates when no webhook_secret is configured. Remote attackers reaching the webhook listener on port 8080 can forge updates with an allowed or admin user_id to run privileged commands like /shell on the host.

Scores

CVSS	Score	Vector	Source
4.0	9.2 Critical	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	8.1 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	VulnCheck

Weaknesses

CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
cc-connectchenhg5	1.5.0 and earlierAffected

References

GitHub Issue #1968issue-tracking
https://github.com/chenhg5/cc-connectproduct
https://github.com/chenhg5/cc-connect/blob/v1.5.0/platform/max/max.go#L287-L305technical-description
VulnCheck Advisory: cc-connect through 1.5.0 Missing Authentication via MAX Webhook Sender Spoofingthird-party-advisory

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