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.
Weakness
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
- samba rsync
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
Find the bug before an attacker does.
Sign in with GitHub and run your first audit in under a minute. The free plan needs no credit card.