Description
stoatchat versions before 0.15.0 fail to block the IPv6 unspecified address (::) in the SSRF blocklist, allowing unauthenticated attackers to bypass protections via the /proxy and /embed endpoints. Attackers can craft requests using IPv6 literal syntax to access services on the loopback interface and retrieve sensitive internal content.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| stoatchat | stoatchat | < 0.15.0 | 0.15.0 |
References
- GitHub Security Advisory (GHSA-4rmr-77qv-hq47) vendor-advisory
- VulnCheck Advisory: stoatchat before 0.15.0 SSRF via IPv6 unspecified address bypass third-party-advisory