MEDIUM 5.4 NVD
CVE-2026-70367
A Server-Side Request Forgery (SSRF) bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to b
A Server-Side Request Forgery (SSRF) bypass vulnerability exists in “stunnel” 5.79 and lower when configured in SOCKS proxy mode. This flaw allows a client to bypass intended localhost restrictions by using IPv4-mapped IPv6 addresses (e.g., “::ffff:127.0.0.1”) or unspecified addresses ("0.0.0.0", "::"), enabling access to loopback-only services on the "stunnel" host that should not be network-reachable.
References
- https://access.redhat.com/security/cve/CVE-2026-70367
- https://bugzilla.redhat.com/show_bug.cgi?id=2462083
- https://bugzilla.redhat.com/show_bug.cgi?id=2462083
This medium severity vulnerability with a CVSS score of 5.4 was published on 2026-08-04 via NVD.
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