Authentication Bypass in saml2-js
Versions of saml2-js prior to 2.0.5 are vulnerable to an Authentication Bypass. The package fails to enforce the assertion conditions for encrypted assertions, which may allow an attacker to reuse encrypted assertion tokens indefinitely.
Recommendation
Upgrade to version 2.0.5 or later.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | saml2-js | < 2.0.5 | 2.0.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-287- Platform
- npm
- Package
saml2-js- Disclosed
- 03.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mfcp-34xw-p57x - CC BY 4.0
Vulnerability history: saml2-js
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 07.2019 09.2020
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 2
Disclosures per year
- 2019: 1
- 2020: 1
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Authentication Bypass in saml2-js this entry
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