{"id":"CVE-2017-1000452","aliases":["GHSA-8jjf-w7j6-323c"],"url":"https://o3.security/vulnerability/CVE-2017-1000452","summary":"Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames","details":"Versions of `samlify` prior to 2.4.0-rc5 are vulnerable to Authentication Bypass. The package fails to prevent XML Signature Wrapping, allowing tokens to be reused with different usernames. A remote attacker can modify SAML content for a SAML service provider without invalidating the cryptographic signature, which may allow attackers to bypass primary authentication for the affected SAML service provider.\n\n\n## Recommendation\n\nUpgrade to version 2.4.0-rc5 or later","published":"2018-01-02T17:29:00.697Z","modified":"2026-07-08T11:47:33.768644Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"samlify","fixedVersion":"2.4.0-rc5"}],"fix":{"url":"https://github.com/tngan/samlify/commit/d382bbc7c6b8ea889839ae1f178730c25b09eb42","label":"tngan/samlify@d382bbc"},"references":[{"type":"ADVISORY","url":"https://www.whitehats.nl/blog/xml-signature-wrapping-samlify"},{"type":"FIX","url":"https://github.com/tngan/samlify/releases/tag/v2.3.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-1000452"},{"type":"WEB","url":"https://github.com/tngan/samlify/commit/d382bbc7c6b8ea889839ae1f178730c25b09eb42"},{"type":"WEB","url":"https://hackerone.com/reports/356284"},{"type":"PACKAGE","url":"https://github.com/tngan/samlify"},{"type":"WEB","url":"https://github.com/tngan/samlify/compare/v2.4.0-rc4...v2.4.0-rc5"},{"type":"WEB","url":"https://github.com/tngan/samlify/releases/tag/v2.4.0-rc5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T11:47:33.768644Z"}}