High8.1Red Hat Linux Updated
High [CVE-2026-70463] Authorization bypass via `auth users` directive parsing
This high-severity Red Hat Linux advisory covers CVE-2026-70463.
CVE-2026-70463 Published Aug 13, 2026Updated by vendor Aug 13, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary
Authorization bypass via `auth users` directive parsing. Red Hat rates this important (CVSS 8.1).
Weakness: CWE-551.
Affected versions
- < 3.1.0
- < 3.5.0
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- To prevent this authorization bypass, ensure that no group names containing spaces are used within the `auth users` directive in the `rsyncd.conf` configuration file. Review and update any existing configurations to remove spaces from group names in this directive. After making changes, restart the `rsync` service for the new configuration to take effect. For example, use `systemctl restart rsyncd` if managing the service with systemd. Note that restarting the service will temporarily interrupt active rsync operations.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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