CVE-2026-41035

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

16/04/2026

Last modified:

17/04/2026

Description

In rsync 3.0.1 through 3.4.1, receive_xattr relies on an untrusted length value during a qsort call, leading to a receiver use-after-free. The victim must run rsync with -X (aka --xattrs). On Linux, many (but not all) common configurations are vulnerable. Non-Linux platforms are more widely vulnerable.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x

7.40

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://github.com/RsyncProject/rsync/issues/871
https://github.com/RsyncProject/rsync/releases
https://www.openwall.com/lists/oss-security/2026/04/16/2
http://www.openwall.com/lists/oss-security/2026/04/16/9