{"id":"CVE-2026-53790","state":"PUBLISHED","title":"rsync < 3.5.0 Command Injection via Multiple Code Paths","description":"rsync before 3.5.0 contains multiple command and argument injection vulnerabilities that allow attackers to execute arbitrary commands by supplying malicious input through several code paths, including the RSYNC_CONNECT_PROG environment variable, daemon hooks, the rsync-ssl wrapper, and remote-shell command newline injection. Attackers can inject shell metacharacters or newline characters into unsanitized user-supplied values such as hostnames and hostspecs to execute arbitrary commands under the privileges of the rsync process or the invoking user.","publishedAt":"2026-08-13T14:37:41.052Z","updatedAt":"2026-08-14T16:50:08.531Z","severity":{"score":9.2,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["RsyncProject rsync"],"affected":[{"vendor":"RsyncProject","product":"rsync","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.4.4","versionType":"semver"},{"version":"3.5.0","status":"unaffected","versionType":"semver"}],"collectionURL":"https://github.com/RsyncProject/rsync"}],"references":["https://github.com/RsyncProject/rsync/security/advisories/GHSA-5hcf-7xxm-rmqq","https://github.com/RsyncProject/rsync/releases/tag/v3.5.0","https://www.vulncheck.com/advisories/rsync-command-injection-via-multiple-code-paths"],"weaknesses":["CWE-78","CWE-88"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53790.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53790","state":"PUBLISHED","datePublished":"2026-08-13T14:37:41.052Z","dateUpdated":"2026-08-14T16:50:08.531Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-06-10T20:14:32.827Z"},"containers":{"cna":{"title":"rsync < 3.5.0 Command Injection via Multiple Code Paths","descriptions":[{"lang":"en","value":"rsync before 3.5.0 contains multiple command and argument injection vulnerabilities that allow attackers to execute arbitrary commands by supplying malicious input through several code paths, including the RSYNC_CONNECT_PROG environment variable, daemon hooks, the rsync-ssl wrapper, and remote-shell command newline injection. 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