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CVE-2026-70456 Details

Description

rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0	[email protected]
https://github.com/RsyncProject/rsync/security/advisories/GHSA-78jc-79jv-v6rw	[email protected]
https://www.vulncheck.com/advisories/rsync-heap-out-of-bounds-write-via-read-args	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Aug 14, 2026	CVE Modified	CISA-ADP
Aug 13, 2026	New CVE Received	[email protected]