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      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
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        "name": "Improper Neutralization of CRLF Sequences ('CRLF Injection')"
      },
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        {
          "category": "description",
          "text": "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.",
          "title": "Vulnerability description"
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          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-53788"
        },
        {
          "category": "external",
          "summary": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0",
          "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0"
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          "summary": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-p4c5-8c68-5fjq",
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          "url": "https://www.vulncheck.com/advisories/rsync-newline-injection-via-name-converter-uid-gid-mapping"
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          "category": "no_fix_planned",
          "date": "2026-09-15T10:00:57.184224Z",
          "details": "Deprioritize: the flaw is only reachable in rsync daemon mode when the optional “name converter” helper is explicitly configured and the daemon is mapping peer-supplied user/group names; rsync-over-SSH is unaffected, and chrooted modules default to numeric-ids, which avoids this code path entirely. Even if exposed, the issue only lets an attacker influence uid/gid mapping metadata (no code execution or availability impact), so it does not expand file access beyond the daemon’s configured permissions. In typical centrally managed VM/server sync jobs, this narrow precondition and metadata-only effect make the practical risk low.",
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