{"cve":{"cve_id":"CVE-2026-53788","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00251,"epss_percentile":0.16284,"epss_as_of":"2026-08-26","description":"rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating user or group names containing newline characters. Attackers can inject malicious newline characters into names communicated over the pipe-based line-oriented protocol to cause the rsync daemon to process attacker-influenced data as legitimate protocol input, corrupting uid/gid mapping logic.","published_at":"2026-08-13T14:36:43.279000Z","last_modified_at":"2026-08-14T16:16:56.350000Z","cvss_v3_score":6.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":6.9,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","cvss_v4_severity":"MEDIUM","ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":true,"ssvc_technical_impact":"partial","cwes":["CWE-93"],"nvd_references":["https://github.com/RsyncProject/rsync/security/advisories/GHSA-p4c5-8c68-5fjq","https://github.com/RsyncProject/rsync/releases/tag/v3.5.0","https://www.vulncheck.com/advisories/rsync-newline-injection-via-name-converter-uid-gid-mapping"],"vuln_status":"Received","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-08-13T16:20:52.863670Z","updated_at":"2026-08-15T19:11:26.492639Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"L","value_label":"Low"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"L","value_label":"Low"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"L","value_label":"Low"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"N","value_label":"None"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"rsyncproject","vendor_name":"RsyncProject","product_slug":"rsync","product_name":"rsync","version_start":"0","version_start_inclusive":true,"version_end":"3.4.4","version_end_inclusive":true,"cpe23_uri":"cve5:rsyncproject:rsync:0:3.4.4"},{"vendor_slug":"rsyncproject","vendor_name":"RsyncProject","product_slug":"rsync","product_name":"rsync","version_start":"3.5.0","version_start_inclusive":true,"version_end":"3.5.0","version_end_inclusive":true,"cpe23_uri":"cve5:rsyncproject:rsync:3.5.0:3.5.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/RsyncProject/rsync/security/advisories/GHSA-p4c5-8c68-5fjq","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/RsyncProject/rsync/releases/tag/v3.5.0","source_type":"PATCH","tags":["patch"]},{"url":"https://www.vulncheck.com/advisories/rsync-newline-injection-via-name-converter-uid-gid-mapping","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-08-13T14:36:43.279000Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-08-14T16:21:52.868909Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-14T16:21:52.868909Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-14T16:21:52.868909Z","label":"SSVC decision revised","source":"vulnrichment"}]}