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CVE-2026-6656— Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks

Quick assessment

Affected
DRSTEVE Crypt::Password
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.

DRSTEVE Crypt::Password是DRSTEVE个人开发者的一款密码处理模块。 DRSTEVE Crypt::Password 0.28及之前版本存在侧信道信息泄露漏洞，该漏洞源于check_password方法使用内置的eq运算符，容易受到计时攻击，攻击者可通过时间差异猜测底层哈希。

AI Predicted 5.3 Difficulty: Easy EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1207 · Rogue Domain Controller

Affected Version Matrix 1

VendorProduct Version RangeStatus
DRSTEVE Crypt::Password ≤ 0.28 affected
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I. Basic Information for CVE-2026-6656

Vulnerability Information
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Vulnerability Title
Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks
Source: CVE Program / CVE List V5
Vulnerability Description
Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks. The check_password method uses the built-in eq operator. This allows discrepancies in timing to be used to guess the underlying hash.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
DRSTEVE Crypt::Password 侧信道信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DRSTEVE Crypt::Password是DRSTEVE个人开发者的一款密码处理模块。 DRSTEVE Crypt::Password 0.28及之前版本存在侧信道信息泄露漏洞，该漏洞源于check_password方法使用内置的eq运算符，容易受到计时攻击，攻击者可通过时间差异猜测底层哈希。
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
DRSTEVE Crypt::Password 0 ~ 0.28 -

II. Public POCs for CVE-2026-6656

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III. Intelligence Information for CVE-2026-6656

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Patches & Fixes for CVE-2026-6656 (1)

IV. Related Vulnerabilities

Same product: Crypt::Password
Same vendor: DRSTEVE
Same weakness: CWE-208

V. Comments for CVE-2026-6656

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