Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/stoatchat/stoatchat/releases/tag/v0.14.0
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-xhww-5g9p-vvq5
- https://www.vulncheck.com/advisories/stoatchat-ssrf-via-dns-based-ip-blocklist-b
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q
FAQ
What is CVE-2026-63088?
CVE-2026-63088 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 incomple...
How severe is CVE-2026-63088?
CVE-2026-63088 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63088?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.