CVE-2026-70452
rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by indu
CVSS
7.4
High
EPSS
0.5%
p38
KEV
—
Exploit Today
11
0-100
Published: Aug 13, 2026 · Last modified: Aug 14, 2026 · CWE-636 · CWE-863
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.