Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-119741 Details

Description

rsync before 3.5.2 contains a denial of service vulnerability in the delta-transfer sender's hash_search() in match.c that allows malicious receivers to trigger unbounded strong-checksum work at consecutive offsets. Unauthenticated attackers pulling from a public daemon module can supply weak checksums colliding with consecutive rolling windows plus non-matching strong checksums, exhausting sender CPU across concurrent connections.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/RsyncProject/rsync/blob/a7404a9a633cff28ee1602f328b9c3fa69cdbd04/testsuite/hashsearch-collision-skip_test.py	[email protected]	Patch
https://github.com/RsyncProject/rsync/commit/a7404a9a633cff28ee1602f328b9c3fa69cdbd04	[email protected]	Patch
https://github.com/RsyncProject/rsync/pull/1132	[email protected]	Issue TrackingPatch
https://github.com/RsyncProject/rsync/releases/tag/v3.5.2	[email protected]
https://www.vulncheck.com/advisories/rsync-through-3.5.1-denial-of-service-via-hash-search-checksum-collisions	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-407	Inefficient Algorithmic Complexity	[email protected]

Affected Products

Product	Versions
samba rsync	<= 3.5.1
CPE cpe:2.3:a:samba:rsync:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	[email protected]
Nov 3, 2026	Initial Analysis	[email protected]
Nov 3, 2026	CVE Modified	CISA-ADP
Nov 3, 2026	New CVE Received	[email protected]