{"id":"AZL-95807","summary":"CVE-2026-70455 affecting package rsync 3.4.3-1","details":"rsync 3.4.2 before 3.5.0 contains a denial of service vulnerability that allows a remote sender to exhaust system resources by specifying the --zt short alias for --compress-threads, which bypasses the refuse options directive's string matching on long option names. Attackers can specify --zt=N with a large value to spawn an unbounded number of Zstandard worker threads on the receiver, exhausting available thread and memory resources.","modified":"2026-09-02T06:51:55Z","published":"2026-08-13T15:19:59Z","upstream":["CVE-2026-70455"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70455"}],"affected":[{"package":{"name":"rsync","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/rsync"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.4.3-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-95807.json"}}],"schema_version":"1.9.0"}