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CVE-2026-0650criticalCWE-306CWE-425

OpenFlagr <= 1.1.18 Authentication Bypass via Prefix Whitelist Path Normalization

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.3epss 0.5%
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
OpenFlagr · Flagr