HIGH 8.7 NVD
CVE-2026-70464
rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by st
rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by stalling the handshake process before or after module selection without triggering the I/O timeout. Attackers can open many simultaneous connections and trickle data at the minimum rate to avoid timeout, or stall entirely before module selection where no timeout applies, consuming all available connection slots and denying service to legitimate clients.
References
- https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-hrwq-ccf7-rw5m
- https://www.vulncheck.com/advisories/rsync-connection-slot-exhaustion-dos-via-handshake-st
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-08-13 via NVD.
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