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.
Severity (CVSS)
| Base score | 7.7 |
|---|---|
| Severity | High |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N |
| Provided by | CNA |
Weaknesses
- CWE-918 — Server-Side Request Forgery (SSRF)
Affected products
| Vendor | Product | Versions |
|---|---|---|
| stoatchat | stoatchat | 0 to <0.14.0 |
References
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q (vendor-advisory)
- https://github.com/stoatchat/stoatchat/releases/tag/v0.14.0 (release-notes patch)
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-xhww-5g9p-vvq5
- https://www.vulncheck.com/advisories/stoatchat-ssrf-via-dns-based-ip-blocklist-bypass (third-party-advisory)
Generated from the official CVE List on 17 Jul 2026 07:01 UTC.