CVE-2017-16897
CVE-2017-16897 is a high-severity vulnerability in Auth0 Passport-wsfed-saml2 with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-290.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 9.3
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-290
- Affected product: Auth0 Passport-wsfed-saml2
- Published:
- Last modified:
Description
A vulnerability has been discovered in the Auth0 passport-wsfed-saml2 library affecting versions < 3.0.5. This vulnerability allows an attacker to impersonate another user and potentially elevate their privileges if the SAML identity provider does not sign the full SAML response (e.g., only signs the assertion within the response).
Frequently asked questions
- What is CVE-2017-16897?
- A vulnerability has been discovered in the Auth0 passport-wsfed-saml2 library affecting versions < 3.0.5. This vulnerability allows an attacker to impersonate another user and potentially elevate their privileges if the SAML identity provider does not sign the full SAML response (e.g., only signs the assertion within the response).
- How severe is CVE-2017-16897?
- CVE-2017-16897 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-16897 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-16897?
- CVE-2017-16897 affects Auth0 Passport-wsfed-saml2. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-16897?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-16897 published?
- CVE-2017-16897 was published on 2017-12-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:auth0:passport-wsfed-saml2:*:*:*:*:*:*:*:*
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