Is CVE-2026-70452 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-70452?

CVE-2026-70452 has a CVSS v3 severity of HIGH (7.4).

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CVE-2026-70452

Description

rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the rule rather than defaulting to a deny decision, enabling attackers who can trigger DNS failures to bypass module-level IP access controls and gain unauthorized access to restricted module file trees.