Description
stoatchat before 0.14.0 contains a server-side request forgery (SSRF) vulnerability that allows unauthenticated network-accessible attackers to bypass the DNS-based IP blocklist by exploiting incomplete address validation in the url_is_blacklisted function, which inspects only the first resolved address while the underlying HTTP client iterates all cached addresses.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| stoatchat | stoatchat | < 0.14.0 | 0.14.0 |
References
- GitHub Security Advisory (GHSA-4mcc-p83c-r77q) vendor-advisory
- stoatchat 0.14.0 Release Notes release-notes patch
- Incomplete Fix - GitHub Security Advisory (GHSA-xhww-5g9p-vvq5)
- https://www.vulncheck.com/advisories/stoatchat-ssrf-via-dns-based-ip-blocklist-bypass third-party-advisory