CVE-2026-70456

HIGH

CVE: CVE-2026-70456 - rsync 3Sign in to save

CVSS

8.2

CVSS v3.1

EPSS

N/A

Exploit Prediction Score

Published

August 13, 2026

Exploitability

No EPSS data available

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.

Weaknesses

CWE-787

Affected Packages

No package data available.

Aliases

CVE-2026-70456

Related references

Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
https://github.com/RsyncProject/rsync/security/advisories/GHSA-78jc-79jv-v6rw
https://www.vulncheck.com/advisories/rsync-heap-out-of-bounds-write-via-read-args