CVE-2026-63088

EUVD-2026-44970
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.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
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-bypass
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q