{"cve":"CVE-2026-0650","nvd":{"published":"2026-01-07T12:17:07.727","modified":"2026-10-08T16:16:55.643","status":"Deferred","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.","cvss_v4":{"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","score":9.3},"cvss_v3":null,"cwes":["CWE-306","CWE-425"],"references":["https://dreyand.rs/code%20review/golang/2026/01/03/0day-speedrun-openflagr-less-1118-authentication-bypass","https://github.com/openflagr/flagr/releases/tag/1.1.19","https://www.vulncheck.com/advisories/openflagr-authentication-bypass-via-prefix-whitelist-path-normalization"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:19:41.481987139+00:00"},"epss":{"cve":"CVE-2026-0650","score":0.01519,"percentile":0.74392,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-rwp9-5g7q-73q3","url":"https://osv.dev/vulnerability/GHSA-rwp9-5g7q-73q3","summary":"OpenFlagr contains an authentication bypass vulnerability in the HTTP middleware","modified":"2026-02-03T03:16:23.484104Z","packages":[{"ecosystem":"Go","name":"github.com/openflagr/flagr","purl":"pkg:golang/github.com/openflagr/flagr","ranges":["<0.0.0-20251009103504-fe83dc87aa40"],"fixed":["0.0.0-20251009103504-fe83dc87aa40"]}]},{"id":"GO-2026-4286","url":"https://osv.dev/vulnerability/GO-2026-4286","summary":"OpenFlagr contains an authentication bypass vulnerability in the HTTP middleware in github.com/openflagr/flagr","modified":"2026-03-03T04:57:51.339531Z","packages":[{"ecosystem":"Go","name":"github.com/openflagr/flagr","purl":"pkg:golang/github.com/openflagr/flagr","ranges":["<0.0.0-20251009103504-fe83dc87aa40"],"fixed":["0.0.0-20251009103504-fe83dc87aa40"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}