---
cve: "CVE-2026-53790"
severity: "CRITICAL"
cvss: 9.2
epss: "52%"
vendor: "RsyncProject"
kev: false
exploited: false
published: "2026-08-13 15:19:43"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T06:51:17+02:00"
---

# CVE-2026-53790

> 9.2 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 471e17dc0d68233db84db11be82c9f62f4661214 (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53790) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_