CVE-2026-0650
OpenFlagr <= 1.1.18 Authentication Bypass via Prefix Whitelist Path Normalization
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 CWE-425 |
| Vendor | openflagr |
| Product | flagr |
| Published | Jan 7, 2026 |
| Last Updated | Jul 14, 2026 |
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Affected Versions
OpenFlagr / Flagr
0 ≤ 1.1.18
References
github.com: https://github.com/openflagr/flagr/releases/tag/1.1.19 dreyand.rs: https://dreyand.rs/code%20review/golang/2026/01/03/0day-speedrun-openflagr-less-1118-authentication-bypass vulncheck.com: https://www.vulncheck.com/advisories/openflagr-authentication-bypass-via-prefix-whitelist-path-normalization
Credits
DreyAnd