CVE-2026-0650

OpenFlagr <= 1.1.18 Authentication Bypass via Prefix Whitelist Path Normalization

Published Jan 7, 2026 CVSS 4.0 · 9.3 Critical EPSS 1.5% KEV · Not listed
Description
OpenFlagr versions prior to and including 1.1.18 contain an authentication bypass vulnerability in the HTTP middleware. Due to improper handling of path normalization in the whitelist logic, crafted requests can bypass authentication and access protected API endpoints without valid credentials. Unauthorized access may allow modification of feature flags and export of sensitive data.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-rwp9-5g7q-73q3 OpenFlagr contains an authentication bypass vulnerability in the HTTP middleware
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Openflagr
Openflagr flagr
Vendors & Products Openflagr
Openflagr flagr
Type Values Removed Values Added
Description OpenFlagr versions prior to and including 1.1.18 contain an authentication bypass vulnerability in the HTTP middleware. Due to improper handling of path normalization in the whitelist logic, crafted requests can bypass authentication and access protected API endpoints without valid credentials. Unauthorized access may allow modification of feature flags and export of sensitive data.
Title OpenFlagr <= 1.1.18 Authentication Bypass via Prefix Whitelist Path Normalization
Weaknesses CWE-306
CWE-425
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:00 PM
Reserved
Jan 6, 2026, 5:17 PM
Status
Deferred
Published
Jan 7, 2026, 12:17 PM
Modified
Oct 26, 2026, 9:10 PM