GHSA-mfcp-34xw-p57x
Authentication Bypass in saml2-js
GHSA-mfcp-34xw-p57x is a medium vulnerability (CVSS 6.8) in saml2-js, published September 3, 2020. No source lists public exploit code. Fixed in saml2-js 2.0.5.
- Severity
- 6.8 MediumCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2.0.5saml2-js
Description
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Affected packages
| Package | Affected | Fixed |
|---|---|---|
saml2-jsnpm | before 2.0.5 | 2.0.5 |
What each source reports
GitHub Advisories Score used
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.
- Record
GHSA-mfcp-34xw-p57x- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSV
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.
- Record
GHSA-mfcp-34xw-p57x- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.