CVE-2021-41580

MEDIUM
5.3
CVSS Score
Published: September 27, 2021 at 06:11 AM UTC
Updated: June 17, 2026 at 04:08 AM UTC
1 product affected across 1 vendorPassport OAUTH2

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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%

Description

The passport-oauth2 package before 1.6.1 for Node.js mishandles the error condition of failure to obtain an access token. This is exploitable in certain use cases where an OAuth identity provider uses an HTTP 200 status code for authentication-failure error reports, and an application grants authorization upon simply receiving the access token (i.e., does not try to use the token). NOTE: the passport-oauth2 vendor does not consider this a passport-oauth2 vulnerability

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.6.1
Affected range stops below 1.6.1, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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