CVE-2026-70453
High · 7.5CVSS
7.5
EPSS
0.5%
Published
Aug 13, 2026
CISA due date
—
The record
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 quadratic-time worst-case behavior in hash lookups to exhaust receiver CPU resources with a modest number of crafted entries, causing a sustained denial of service.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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