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CVE-2026-70458 is an out-of-bounds write in rsync versions 3.0.0 through 3.4.4. During HLINK_BUMP processing, a file entry marked with FLAG_HLINKED can be handled while hard-link preservation is inactive. The resulting file_struct layout lacks the F_SUM field expected by that processing path, causing access beyond the allocated structure and corruption of adjacent heap or stack memory.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability covered by TencentOS security advisory TSSA-2026-0874 affecting TencentOS Server 4's rsync package. The supplied CVSS v3 vector indicates a network-accessible flaw requiring no privileges or user interaction, with low integrity and high availability impact.
One of 33 rsync security issues addressed by the FreeBSD advisory.
A vulnerability referenced in a Fedora security advisory for the rsync package; no specific technical details are provided in the content.
Unknown
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.