CVE-2026-70458

ADVISORY - nist

Summary

rsync 3.0.0 before 3.5.0 contains an out-of-bounds write vulnerability that allows attackers to corrupt memory by triggering HLINK_BUMP processing on file entries with the FLAG_HLINKED flag set while the hard-link preservation option is inactive. Attackers can exploit the missing F_SUM field in the file_struct layout to access memory past the end of the allocated structure, corrupting adjacent heap or stack data.

EPSS Score⁠: 0.00396 (0.327)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-787⁠

Out-of-bounds Write

Impacted images

Advisories

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