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CVE-2026-107371— Missing Verification of auth_time Claim in auth0.js

Quick assessment

Affected
Auth0 auth0.js
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

当调用 方法并传入 参数时，auth0.js 库不会将生成的 ID Token 中的 声明与请求的 值进行验证。因此，应用程序可能会处理一个代表较早认证事件的 ID Token，其认证时间超出了所请求的最大年龄限制。

CVSS 5.4 · Medium EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
Auth0 auth0.js 9.12.0< 10.3.0 affected
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I. Basic Information for CVE-2026-107371

Vulnerability Information
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Vulnerability Title
Missing Verification of auth_time Claim in auth0.js
Source: CVE Program / CVE List V5
Vulnerability Description
When the authorize() method is called with a maxAge parameter, the auth0.js library does not validate the auth_time claim in the resulting ID token against the requested maxAge value. As a result, an application may process an ID token that represents an authentication event older than the requested maximum age.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Auth0 auth0.js 9.12.0 ~ 10.3.0 -

II. Public POCs for CVE-2026-107371

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III. Intelligence Information for CVE-2026-107371

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Vendor Advisories for CVE-2026-107371 (2)

Same Patch Batch · Auth0 · 2026-10-13 · 4 CVEs total

CVE-2026-107369 6.1 MEDIUM Improper Validation of Post-Login Redirect URL in nextjs-auth0
CVE-2026-85473 5.3 MEDIUM Out-of-Range Timestamp Claim Handling in auth0/java-jwt
CVE-2026-107370 5.3 MEDIUM Improper Request Handling for Active Directory Logins in auth0-lock

IV. Related Vulnerabilities

Same product: auth0.js
Same vendor: Auth0
Same weakness: CWE-613

V. Comments for CVE-2026-107371

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