{"apiVersion":"1.0","identifier":"CVE-2026-53783","description":"rsync before 3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer processing. Attackers can additionally leverage unrestricted flags such as --copy-unsafe-links, -D, and --log-file through rrsync to read or write files outside the permitted directory subtree.","publishedAt":"2026-08-13T15:19:41","lastModifiedAt":"2026-08-14T17:18:58","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53783","cvssScore":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","epssProbability":0.00374,"riskScore":0.84,"affectedProduct":"rsync","affectedVersions":"<3.5.0","vulnerabilityType":"Critical software","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-53783","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-53783","en":"https://www.redsauce.net/en/cves/CVE-2026-53783","fr":"https://www.redsauce.net/fr/cves/CVE-2026-53783","pt":"https://www.redsauce.net/pt/cves/CVE-2026-53783","de":"https://www.redsauce.net/de/cves/CVE-2026-53783","sk":"https://www.redsauce.net/sk/cves/CVE-2026-53783","el":"https://www.redsauce.net/el/cves/CVE-2026-53783"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-53783"}}