Inefficient Algorithmic Complexity Affecting rsync package, versions [,3.5.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-RSYNC-19427389
- published29 Aug 2026
- disclosed13 Aug 2026
- creditUnknown
Introduced: 13 Aug 2026
CVE-2026-70453 (opens in a new tab)How to fix?
Upgrade rsync to version 3.5.0 or higher.
Overview
Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity through the hash_search function. An attacker can exhaust CPU resources by sending a specially crafted file list that triggers worst-case quadratic-time behavior in hash lookups.