CVE-2026-73058CWE-918ssrf

CVE-2026-73058

Medium · published August 16, 2026

CVSS v3.1
5.8
EPSS
0%
Percentile
29.0
In the wild
Unconfirmed
What it is

stoatchat versions before 0.15.0 fail to block the IPv6 unspecified address (::) in the SSRF blocklist, allowing unauthenticated attackers to bypass protections via the /proxy and /embed endpoints. Attackers can craft requests using IPv6 literal syntax to access services on the loopback interface and retrieve sensitive internal content.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
EPSS
0.00364 · 29.0th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-08-16T18:16Z
References (3)
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4rmr-77qv-hq47 · [email protected]https://www.vulncheck.com/advisories/stoatchat-before-ssrf-via-ipv6-unspecified-address-bypass · [email protected]https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4rmr-77qv-hq47 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 16 AUG 13:14Z
    stoatchat before 0.15.0 SSRF via IPv6 unspecified address bypass
    cvelistv5