CVE-2026-63088

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 v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
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

Configurations

No configuration.

History

16 Jul 2026, 19:16

Type	Values Removed	Values Added
References	~~() https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q -~~	() https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q -

16 Jul 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-16 17:16

Updated : 2026-07-16 19:16

NVD link : CVE-2026-63088

Mitre link : CVE-2026-63088

CVE.ORG link : CVE-2026-63088

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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