rsync: Rsync: Use-after-free vulnerability in extended attribute handling

A flaw was found in rsync. When rsync is configured to handle extended attributes using the -X or --xattrs option, a remote attacker can exploit a use-after-free vulnerability. This occurs because the receivexattr function incorrectly processes an untrusted length value during a sorting operation...

EUVD-2026-23215

In rsync 3.0.1 through 3.4.1, receivexattr 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...

Improper Handling of Length Parameter Inconsistency

Overview Affected versions of this package are vulnerable to Improper Handling of Length Parameter Inconsistency in the receivexattr function when it relies on an untrusted length value during a qsort call. An attacker can achieve unauthorized access to sensitive information, modify data, or caus...

CVE-2026-41035

In rsync 3.0.1 through 3.4.1, receivexattr 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...