Is CVE-2026-85676 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-85676?

CVE-2026-85676 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-85676

Description

Dub contains an open redirect vulnerability in the redir_url query parameter that is accepted on every short link without validation or domain allowlist enforcement. Attackers can append the redir_url parameter to any short link to redirect visitors to arbitrary external URLs through the trusted Dub domain, bypassing destination blacklists and potentially enabling phishing attacks with link cloaking enabled.