{"apiVersion":"1.0","identifier":"CVE-2026-70455","description":"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.","publishedAt":"2026-08-13T15:19:59","lastModifiedAt":"2026-08-26T17:01:33","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70455","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","epssProbability":0.00479,"riskScore":0.78,"affectedProduct":"rsync","affectedVersions":">=3.4.2,<3.5.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-70455","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-70455","en":"https://www.redsauce.net/en/cves/CVE-2026-70455","fr":"https://www.redsauce.net/fr/cves/CVE-2026-70455","pt":"https://www.redsauce.net/pt/cves/CVE-2026-70455","de":"https://www.redsauce.net/de/cves/CVE-2026-70455","sk":"https://www.redsauce.net/sk/cves/CVE-2026-70455","el":"https://www.redsauce.net/el/cves/CVE-2026-70455"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-70455"}}