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CVE-2026-53784

Estado: AnalizadaAlta (8.4)—

rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Samba — Rsync

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-53784",
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-08-15T03:17:06.422917Z"
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          "version": "4.0",
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          "valueDensity": "NOT_DEFINED",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  "published": "2026-08-13T15:19:42.190",
  "references": [
    {
      "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0",
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    },
    {
      "url": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-ffg2-fr5g-3rxw",
      "tags": [
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    },
    {
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  "vulnStatus": "Analyzed",
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          "value": "CWE-59"
        }
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      "value": "rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access."
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  ],
  "lastModified": "2026-08-31T15:39:32.197",
  "configurations": [
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        {
          "negate": false,
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}