Description
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.
CVSS 7.5EPSS 0.525%Risk 0.79
View source- Published
- 2026-08-13 15:19:58
- Affected versions
- <3.5.0
- Type
- Library
- Last modified
- 2026-08-13 18:18:15
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H