PT-2026-73145 · Stoatchat · Stoatchat
CVSS v4.0
6.9
Medium
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
stoatchat versions prior to 0.15.0
Description
An issue exists where the SSRF (Server-Side Request Forgery) blocklist fails to block the IPv6 unspecified address (::). This allows unauthenticated attackers to bypass protections using the '/proxy' and '/embed' endpoints. By crafting requests with IPv6 literal syntax, attackers can access services on the loopback interface to retrieve sensitive internal content.
Recommendations
Update to version 0.15.0 or later.
Restrict access to the '/proxy' and '/embed' endpoints as a temporary mitigation measure.
Exploit
Fix
SSRF
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Weakness Enumeration
Related Identifiers
Affected Products
Stoatchat