SEPTEMBER 9, 2026
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Case File

CVE-2026-63306

HIGH · CVSS 8.6 EPSS 0.24% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-16 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

The vulnerability allows unauthenticated attackers to exploit the /proxy and /embed endpoints in stoatchat versions prior to 0.13.5, enabling server-side request forgery (SSRF) without proper DNS resolution filtering or validation of private IP ranges. This can lead to internal service enumeration, application fingerprinting, and unauthorized access to instance metadata endpoints, posing a significant risk to the security of internal infrastructure. Organizations using stoatchat should prioritize patching to mitigate potential exploitation of this high-severity vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-63306
Severity
HIGH
CVSS
8.6
EPSS
0.24%

Original NVD Description

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.