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CVE-2026-46473— Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand

Quick assessment

Affected
TCHATZI Authen::TOTP
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.

Authen::TOTP是tchatzi个人开发者的一个基于RFC6238的双因素认证OTP生成与验证工具。 Authen::TOTP 0.1.1之前版本存在安全特征问题漏洞，该漏洞源于使用Perl内置rand函数生成秘密，该函数可预测且不适合安全用途。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.42% · P36

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
TCHATZI Authen::TOTP < 0.1.1 affected
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I. Basic Information for CVE-2026-46473

Vulnerability Information
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Vulnerability Title
Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand
Source: CVE Program / CVE List V5
Vulnerability Description
Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand. Secrets were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Authen::TOTP 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Authen::TOTP是tchatzi个人开发者的一个基于RFC6238的双因素认证OTP生成与验证工具。 Authen::TOTP 0.1.1之前版本存在安全特征问题漏洞，该漏洞源于使用Perl内置rand函数生成秘密，该函数可预测且不适合安全用途。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TCHATZI Authen::TOTP 0 ~ 0.1.1 -

II. Public POCs for CVE-2026-46473

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III. Intelligence Information for CVE-2026-46473

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Patches & Fixes for CVE-2026-46473 (1)

Other References for CVE-2026-46473 (1)

IV. Related Vulnerabilities

Same weakness: CWE-331