HIGHVulnerability
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 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.
Properties
- severity
- HIGH
- score
- 7.5
- epss_score
- 0.00525
- cve_id
- CVE-2026-70453
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-08-13T15:19:58.893
- last_modified
- 2026-09-08T20:28:37.587
- epss_percentile
- 0.42665
Related Entities (3)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (1)
→[Weakness]Inefficient Algorithmic Complexity
DESCRIBED_BY (1)
→[Source]NVD
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