Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-82470— Rodauth before 2.47.0 TOTP Code Reuse via Drift Window

Quick assessment

Affected
jeremyevans rodauth
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.

Rodauth 2.47.0 之前的版本中存在一个基于时间的一次性密码（TOTP）重用漏洞，位于 OTP 功能中。由于该功能未能跟踪最后一次被接受验证码的时间戳，攻击者在观察到有效的 TOTP 代码后，可以在时间漂移窗口内重放该代码，从而绕过第二认证因子（2FA）。

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-82470

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Rodauth before 2.47.0 TOTP Code Reuse via Drift Window
Source: CVE Program / CVE List V5
Vulnerability Description
Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.
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
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jeremyevans rodauth 0 ~ 2.47.0 -

II. Public POCs for CVE-2026-82470

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-82470

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-82470 (1)

Vendor Advisories for CVE-2026-82470 (2)

Same Patch Batch · jeremyevans · 2026-08-29 · 5 CVEs total

CVE-2026-82466 8.7 HIGH Rodauth before 2.46.0 Authentication Bypass via webauthn_login
CVE-2026-82469 5.4 MEDIUM Rodauth before 2.47.0 Authentication Bypass via jwt_refresh
CVE-2026-82467 4.7 MEDIUM Rodauth before 2.47.0 Open Redirect via Return-to Path
CVE-2026-82468 4.7 MEDIUM Rodauth before 2.47.0 CSRF Protection Bypass via Content-Type

IV. Related Vulnerabilities

Same product: rodauth
Same vendor: jeremyevans
Same weakness: CWE-294

V. Comments for CVE-2026-82470

No comments yet

Leave a comment