Vulnerability DatabaseCVE-2026-63088
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CVE-2026-63088
Published:July 16, 2026
Updated:August 04, 2026
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 Packages
https://github.com/stoatchat/stoatchat.git (GITHUB):
Affected version(s) >=v0.8.8 <v0.14.0
Fix Suggestion:
Update to version v0.14.0
Related Resources (7)
https://nvd.nist.gov/vuln/detail/CVE-2026-63088
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-xhww-5g9p-vvq5
https://github.com/stoatchat/stoatchat
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63088.json
https://github.com/stoatchat/stoatchat/releases/tag/v0.14.0
https://www.vulncheck.com/advisories/stoatchat-ssrf-via-dns-based-ip-blocklist-bypass
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q
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CVSS v4
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
CWE-918
EPSS
Base Score:
0.37