CVE-2026-33026 PUBLISHED

nginx-ui Backup Restore Allows Tampering with Encrypted Backups

Assigner: GitHub_M
Reserved: 17.03.2026 Published: 30.03.2026 Updated: 31.03.2026

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui backup restore mechanism allows attackers to tamper with encrypted backup archives and inject malicious configuration during restoration. This issue has been patched in version 2.3.4.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	0xJacky
Product	nginx-ui
Versions	Version < 2.3.4 is affected

References

Problem Types

CWE-312: Cleartext Storage of Sensitive Information CWE
CWE-347: Improper Verification of Cryptographic Signature CWE
CWE-354: Improper Validation of Integrity Check Value CWE