CVE-2025-68435: Zerobyte is a backup automation tool Zerobyte versions prior to 0.18.5 and 0.19.0 contain an authentication bypass vulnerability where authentication…

PriorityP265critical9.1CVSS 3.1

AVNACLPRNUINSUCHIHAN

EPSS

0.36%

28.2th percentile

Zerobyte is a backup automation tool Zerobyte versions prior to 0.18.5 and 0.19.0 contain an authentication bypass vulnerability where authentication middleware is not properly applied to API endpoints. This results in certain API endpoints being accessible without valid session credentials. This is dangerous for those who have exposed Zerobyte to be used outside of their internal network. A fix has been applied in both version 0.19.0 and 0.18.5. If immediate upgrade is not possible, restrict network access to the Zerobyte instance to trusted networks only using firewall rules or network segmentation. This is only a temporary mitigation; upgrading is strongly recommended.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
nicotsx	zerobyte	< 0.18.5	0.18.5
nicotsx	zerobyte	—	—

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