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.
Published: 2026-04-16
Score: 7.4 High
EPSS: < 1% Very Low
KEV: No
Impact: Use‑After‑Free memory corruption potentially leading to denial of service or code execution
Action: Immediate Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8283-1 rsync vulnerabilities
Ubuntu USN Ubuntu USN USN-8349-1 rsync vulnerabilities
References
Link Providers
http://www.openwall.com/lists/oss-security/2026/04/16/9 cve-icon
http://www.openwall.com/lists/oss-security/2026/04/22/3 cve-icon
https://access.redhat.com/errata/RHSA-2026:17481 cve-icon
https://access.redhat.com/errata/RHSA-2026:19152 cve-icon
https://access.redhat.com/errata/RHSA-2026:19368 cve-icon
https://access.redhat.com/errata/RHSA-2026:20601 cve-icon
https://access.redhat.com/errata/RHSA-2026:20602 cve-icon
https://access.redhat.com/errata/RHSA-2026:20603 cve-icon
https://access.redhat.com/errata/RHSA-2026:20604 cve-icon
https://access.redhat.com/errata/RHSA-2026:20696 cve-icon
https://access.redhat.com/errata/RHSA-2026:23233 cve-icon
https://access.redhat.com/errata/RHSA-2026:23245 cve-icon
https://access.redhat.com/errata/RHSA-2026:25044 cve-icon
https://access.redhat.com/errata/RHSA-2026:25149 cve-icon
https://access.redhat.com/errata/RHSA-2026:25170 cve-icon
https://access.redhat.com/errata/RHSA-2026:25172 cve-icon
https://access.redhat.com/errata/RHSA-2026:25173 cve-icon
https://access.redhat.com/errata/RHSA-2026:25181 cve-icon
https://access.redhat.com/errata/RHSA-2026:25190 cve-icon
https://access.redhat.com/errata/RHSA-2026:26542 cve-icon
https://access.redhat.com/errata/RHSA-2026:28887 cve-icon
https://access.redhat.com/errata/RHSA-2026:29197 cve-icon
https://access.redhat.com/errata/RHSA-2026:34098 cve-icon
https://access.redhat.com/security/cve/CVE-2026-41035 cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2458898 cve-icon
https://github.com/RsyncProject/rsync/issues/871 cve-icon cve-icon cve-icon
https://github.com/RsyncProject/rsync/releases cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-41035 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41035.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-41035 cve-icon
https://www.openwall.com/lists/oss-security/2026/04/16/2 cve-icon cve-icon cve-icon
History

Wed, 22 Apr 2026 04:30:00 +0000

Type Values Removed Values Added
References

Fri, 17 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
Title Rsync xattrs Use‑After‑Free Exploit Risk rsync: Rsync: Use-after-free vulnerability in extended attribute handling
Weaknesses CWE-805
References
Metrics threat_severity

None

threat_severity

Important


Fri, 17 Apr 2026 06:15:00 +0000

Type Values Removed Values Added
Title Rsync xattrs Use‑After‑Free Exploit Risk

Thu, 16 Apr 2026 21:30:00 +0000

Type Values Removed Values Added
References

Thu, 16 Apr 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 16 Apr 2026 07:15:00 +0000

Type Values Removed Values Added
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.
First Time appeared Samba
Samba rsync
Weaknesses CWE-130
CPEs cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*
Vendors & Products Samba
Samba rsync
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-15T01:00:07.366Z

Reserved: 2026-04-16T06:53:04.777Z

Link: CVE-2026-41035

cve-icon Vulnrichment

Updated: 2026-04-22T03:03:52.565Z

cve-icon NVD

Status : Modified

Published: 2026-04-16T07:16:31.003

Modified: 2026-07-15T02:21:12.250

Link: CVE-2026-41035

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-16T06:53:05Z

Links: CVE-2026-41035 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-18T17:30:05Z

Weaknesses
  • CWE-130

    Improper Handling of Length Parameter Inconsistency

  • CWE-805

    Buffer Access with Incorrect Length Value