---
cve: "CVE-2026-53784"
severity: "HIGH"
cvss: 8.4
epss: "18%"
vendor: "RsyncProject"
kev: false
exploited: false
published: "2026-08-13 15:19:42"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T09:32:28+02:00"
---

# CVE-2026-53784

> 8.4 HIGH · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 471e17dc0d68233db84db11be82c9f62f4661214 (Commit)
- 471e17dc0d68233db84db11be82c9f62f4661214 (Commit)

## Referenzen

- <https://github.com/RsyncProject/rsync/security/advisories/GHSA-ffg2-fr5g-3rxw>
- <https://github.com/RsyncProject/rsync/releases/tag/v3.5.0>
- <https://www.vulncheck.com/advisories/rsync-path-traversal-via-symlink-module-root>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53784) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_