VULNERABILITY INTELLIGENCE
CVE-2026-63088
CVSS score8.6 HIGH
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-07-16
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
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.
Weakness classification
- disclosure@vulncheck.com: CWE-918