CVE-2026-41035

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-16 · updated 2026-10-26
Weakness: CWE-130

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.

Affected products

RsyncProject rsync: from 3.0.1 through 3.4.1

References

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
http://www.openwall.com/lists/oss-security/2026/04/22/3
https://access.redhat.com/errata/RHSA-2026:17481
https://access.redhat.com/errata/RHSA-2026:19152
https://access.redhat.com/errata/RHSA-2026:19368
https://access.redhat.com/errata/RHSA-2026:20601
https://access.redhat.com/errata/RHSA-2026:20602
https://access.redhat.com/errata/RHSA-2026:20603
https://access.redhat.com/errata/RHSA-2026:20604

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