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Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck

CVE-2026-70459rsync 3.0.0 < 3.5.0 Daemon Crash via Malformed File List Entry

Medium 5.3

In plain English

A medium-severity security flaw in rsync from RsyncProject. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.7%top 45.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process that allows remote attackers to crash the daemon by sending a file list whose first entry is a dot entry not typed as a directory. The daemon dereferences the first file list entry as a directory structure pointer without verifying the entry type, resulting in an invalid or uninitialized pointer dereference that terminates the client connection.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.21rsync3.5.0-r0ALPINE-CVE-2026-70459
Alpine:v3.22rsync3.5.0-r0ALPINE-CVE-2026-70459
Alpine:v3.23rsync3.5.0-r0ALPINE-CVE-2026-70459
Alpine:v3.24rsync3.5.0-r0ALPINE-CVE-2026-70459
Debian:12rsyncno fix listedDEBIAN-CVE-2026-70459
Debian:13rsync3.5.0+ds1-0+deb13u1DEBIAN-CVE-2026-70459
Debian:14rsync3.5.0+ds1-1DEBIAN-CVE-2026-70459
Ubuntu:22.04:LTSrsyncno fix listedUBUNTU-CVE-2026-70459
Ubuntu:24.04:LTSrsyncno fix listedUBUNTU-CVE-2026-70459
Ubuntu:26.04:LTSrsyncno fix listedUBUNTU-CVE-2026-70459
Ubuntu:26.10rsyncno fix listedUBUNTU-CVE-2026-70459

Affected products (as reported)

VendorProductVersions
RsyncProject rsync 3.0.0 – through 3.4.4

Weakness: CWE-908 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References