CVE-2026-63306: critical vulnerability in stoatchat
stoatchat before 0.13.5 Unauthenticated SSRF via proxy and embed endpoints
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.3%
stoatchat before 0.13.5 contains an unauthenticated server-side request forgery vulnerability in the /proxy and /embed endpoints that accept arbitrary URLs without DNS resolution filtering or private IP range validation. Attackers can enumerate internal services, fingerprint applications, and reach instance metadata endpoints by supplying malicious URLs or leveraging redirect chains to access internal infrastructure.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Affected products
stoatchat · stoatchatRelated CVEs — stoatchat
In the same product, most dangerous first.
CVE-2025-71377HIGHstoatchat before 20250210-1 Unrestricted Message History FetchEPSS 0.7%CVE-2026-100676HIGHstoatchat before 0.15.5 Local Filesystem Read via SVGEPSS 0.5%CVE-2025-71388HIGHstoatchat 20241213-1 Webhook Token Disclosure via Read PermissionsEPSS 0.5%CVE-2026-63088HIGHstoatchat < 0.14.0 SSRF via DNS-based IP Blocklist BypassEPSS 0.5%CVE-2024-58360MEDIUMstoatchat before 0.7.8 Unrestricted Account CreationEPSS 0.4%CVE-2026-100679HIGHstoatchat before 0.15.5 MFA Bypass via Cross-Account TicketEPSS 0.4%