Vulnerability in Rsyncproject Rsync
CVE-2026-70453
rsync before 3.5.0 contains an algorithmic complexity vulnerability in the hash_search() function that allows a remote attacker to cause a denial of service by delivering a carefully constructed file list. A sender can exploit the quadrati…
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rsyncproject Rsync — versions 0, 3.5.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes)
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-70453?
- CVE-2026-70453 is a high-severity vulnerability in Rsyncproject Rsync, classified under Inefficient Algorithmic Complexity. CVSS score: 7.5/10. Published 2026-08-13.
- How severe is CVE-2026-70453?
- High severity. CVSS v3 base score is 7.5 out of 10.