CVE-2026-42565: URL Redirection to Untrusted Site

@workos/authkit-session is a toolkit for building WorkOS AuthKit framework integrations. Prior to 0.5.1, an open redirect vulnerability exists in AuthService.handleCallback due to insufficient validation of the returnPathname value derived from the OAuth state parameter. The state parameter is...

@mastra/auth-workos (>=0.0.0-a-b-demo-20260521201120, <=1.5.2), @workos/authkit-sveltekit (>=0.0.1-alpha.0, <=0.2.0) +1 more potentially affected by CVE-2026-42565 via @workos/authkit-session (>=0.0.1-alpha.3, <=0.4.0)

@workos/authkit-session NPM version =0.0.1-alpha.3, =0.0.0-a-b-demo-20260521201120, =0.0.1-alpha.0, =0.1.0, =0.6.0 Source cves: CVE-2026-42565 Source advisory: OSV:GHSA-VVVV-983W-R7PV...

@mastra/auth-workos (>=0.0.0-a-b-demo-20260521201120, <=1.5.2), @workos/authkit-sveltekit (>=0.0.1-alpha.0, <=0.2.0) +1 more potentially affected by CVE-2026-42565 via @workos/authkit-session (>=0.0.1-alpha.3, <=0.4.0)

@workos/authkit-session NPM version =0.0.1-alpha.3, =0.0.0-a-b-demo-20260521201120, =0.0.1-alpha.0, =0.1.0, =0.6.0 Source cves: CVE-2026-42565 Source advisory: SNYK:JS-WORKOSAUTHKITSESSION-16425670...

CVE-2025-23017

WorkOS Hosted AuthKit before 2025-01-07 allows a password authentication MFA bypass by enrolling a new authentication factor when the attacker knows the user's password. No exploitation occurred...

CVE-2025-23017

WorkOS Hosted AuthKit before 2025-01-07 allows a password authentication MFA bypass by enrolling a new authentication factor when the attacker knows the user's password. No exploitation occurred...

CVE-2025-23017

Vulnerability summary (CVE-2025-23017) : WorkOS Hosted AuthKit before 2025-01-07 is affected. An attacker who knows a user’s password can bypass MFA by enrolling a new authentication factor. The description notes that no exploitation occurred. The practical impact is a password-authentication MFA...

Information Exposure

@workos-inc/authkit-remix is vulnerable to Information Exposure. The vulnerability is due to the debug flag being enabled, which allows an attacker to view refresh tokens logged to the console...