{"id":"CVE-2026-70458","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-70458","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…","details":"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.","published":"2026-08-13T15:19:59.663","modified":"2026-08-13T15:19:59.663","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/RsyncProject/rsync/releases/tag/v3.5.0"},{"type":"WEB","url":"https://github.com/RsyncProject/rsync/security/advisories/GHSA-gg3m-4m9m-268h"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/rsync-out-of-bounds-write-via-flag-hlinked-handling"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-13T15:19:59.663"}}