CVE-2026-8704— Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| TIMLEGGE | Crypt::DSA | ≤ 1.19 | affected |
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I. Basic Information for CVE-2026-8704
Vulnerability Information
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Vulnerability Title
Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified
Source: NVD (National Vulnerability Database)
Vulnerability Description
Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对外部实体的文件或目录可访问
Source: NVD (National Vulnerability Database)
Vulnerability Title
Crypt::DSA 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Crypt::DSA是TIMLEGGE个人开发者的一个支持DSA数字签名生成与验证功能的Perl密码学模块。 Crypt::DSA 1.19及之前版本存在安全漏洞，该漏洞源于使用2-args open，可能导致修改现有文件。
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 |
|---|---|---|---|---|
| TIMLEGGE | Crypt::DSA | 0 ~ 1.19 | - |
II. Public POCs for CVE-2026-8704
| # | POC Description | Source Link | Shenlong Link |
|---|
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News Coverage for CVE-2026-8704 (1)
- 🔗 Changes - metacpan.orgrelease-notes
Other References for CVE-2026-8704 (1)
IV. Related Vulnerabilities
Same vendor: TIMLEGGE
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Crypt::NaCl::Sodium versions through 2.001 for Perl has an i - CVE-2025-40934
XML-Sig prior to 0.68 for Perl improperly validates XML with - CVE-2020-36846
IO::Compress::Brotli versions prior to 0.007 for Perl have a
V. Comments for CVE-2026-8704
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