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CVE-2026-53799

rsync < 3.5.0 Symlink Race Condition via ACL/xattr Application PUBLISHED

Description (CNA)

rsync before 3.5.0 contains a symlink race condition vulnerability that allows local attackers to cause rsync to apply arbitrary ACLs or extended attributes to unintended files by substituting a symlink at a predictable destination path between the file write and the subsequent acl_set_file() or lsetxattr() call. Attackers can exploit this timing window to redirect ACL and xattr application through a crafted symlink to files outside the intended destination tree, potentially granting elevated permissions and enabling local privilege escalation.

Affected (CNA)

Vendor / productVersions
RsyncProject / rsyncaffected 0 through 3.4.4; unaffected 3.5.0

CWE

CWE-59, CWE-367

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.