by Kastro
Paper/Archive/CVE-2026-108549

CVE-2026-108549

chenhg5 cc-connect — cc-connect through 1.5.0 Missing Authentication via MAX Webhook Sender Spoofing

EPSS 0.5%CVSS 9.2
critical.is priorityof 100
35
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 39.2.392 × 207.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
cc-connect≤ 1.5.0–CNA

Scores by source

VulnCheck (CNA)9.2CVSS: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 (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/chenhg5/cc-connect/issues/1968refgithub.com/chenhg5/cc-connectwriteupgithub.com/chenhg5/cc-connect/blob/v1.5.0/platform/max/max.go#L287-L305writeupvulncheck.com/advisories/cc-connect-through-1.5.0-missing-authentication-via-max-webhook-sender-spoofing