CWE-130 Improper Handling of Length Parameter Inconsistency in Samba rsync (CVE-2026-41035)
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.
AI Analysis
Technical Summary
The rsync utility in Red Hat Enterprise Linux 10 contains a use-after-free vulnerability in its handling of extended attributes (CVE-2026-41035). This flaw could be exploited to cause a crash or potentially execute arbitrary code, impacting confidentiality, integrity, and availability. Red Hat has issued a security advisory (RHSA-2026:19152) with updated packages that fix this issue. The advisory covers multiple architectures including x86_64, s390x, ppc64le, and aarch64. The vulnerability is rated as important by Red Hat Product Security.
Potential Impact
Successful exploitation of this use-after-free vulnerability could allow an attacker with local privileges to cause a denial of service or potentially execute arbitrary code, impacting system confidentiality, integrity, and availability. The CVSS vector indicates network attack vector, low attack complexity, low privileges required, no user interaction, and scope change, with low confidentiality, integrity, and availability impacts.
Mitigation Recommendations
A security update fixing this vulnerability is available from Red Hat for Red Hat Enterprise Linux 10 and its Extended Update Support versions. Users should apply the updated rsync packages as provided in Red Hat Advisory RHSA-2026:19152. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. No alternative mitigations are specified; applying the official patch is the recommended remediation.
CWE-130 Improper Handling of Length Parameter Inconsistency in Samba rsync (CVE-2026-41035)
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.
CVSS v3.1
Score 7.4high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The rsync utility in Red Hat Enterprise Linux 10 contains a use-after-free vulnerability in its handling of extended attributes (CVE-2026-41035). This flaw could be exploited to cause a crash or potentially execute arbitrary code, impacting confidentiality, integrity, and availability. Red Hat has issued a security advisory (RHSA-2026:19152) with updated packages that fix this issue. The advisory covers multiple architectures including x86_64, s390x, ppc64le, and aarch64. The vulnerability is rated as important by Red Hat Product Security.
Potential Impact
Successful exploitation of this use-after-free vulnerability could allow an attacker with local privileges to cause a denial of service or potentially execute arbitrary code, impacting system confidentiality, integrity, and availability. The CVSS vector indicates network attack vector, low attack complexity, low privileges required, no user interaction, and scope change, with low confidentiality, integrity, and availability impacts.
Mitigation Recommendations
A security update fixing this vulnerability is available from Red Hat for Red Hat Enterprise Linux 10 and its Extended Update Support versions. Users should apply the updated rsync packages as provided in Red Hat Advisory RHSA-2026:19152. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. No alternative mitigations are specified; applying the official patch is the recommended remediation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20601
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a160977e29bf47b5064264c
Added to database: 05/26/2026, 20:58:31 UTC
Last enriched: 07/10/2026, 12:54:16 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 69
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