Integer overflow in Rsync - CVE-2026-43618
Published: June 1, 2026
Vulnerability identifier: #VU133146
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43618
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Samba
Affected software:
Rsync
Rsync
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to an integer overflow in the compressed-token decoder when processing compressed token data from an authenticated daemon connection. A remote user can send crafted compressed-token data to disclose sensitive information.
The disclosed memory may include environment variables, passwords, heap data, and library pointers.
How to mitigate CVE-2026-43618
Install security update from vendor's website.