CVE-2025-68435 | THREATINT

Description

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.

PUBLISHED Reserved 2025-12-17 | Published 2025-12-17 | Updated 2025-12-18 | Assigner GitHub_M

CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-305: Authentication Bypass by Primary Weakness

Product status

< 0.18.5

affected

References

github.com/...robyte/security/advisories/GHSA-x539-c98q-38gv

github.com/nicotsx/zerobyte/issues/161

github.com/...ommit/13e080a18967705bd2b4e110e5f7693fdca1c692

cve.org (CVE-2025-68435)

nvd.nist.gov (CVE-2025-68435)

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