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CVE-2026-126673— Data::Dump::Streamer versions before 3.00 for Perl allow code injection via unescaped Regexp patterns in _dump_qr

Quick assessment

Affected
CVE-2026-126673
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.

在 Perl 环境中，Data::Dump::Streamer 3.00 之前的版本存在代码注入漏洞。该漏洞源于 函数中未对正则表达式（Regexp）模式中的特殊字符进行转义。 具体而言，正则表达式的模式被直接写入 字面量时，未对 和 字符进行转义。因此，若模式中包含 或 等结构，在后续通过 或 执行生成的 dump 内容时，这些内容将被当作 Perl 代码执行。此外，原本已转义的定界符会被额外添加一个反斜杠，导致定界符失去转义保护，从而提前终止 字面量。 攻击者若能提供由应用程序编译、序列化（dump）并在之后通

AI Predicted 7.8 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

I. Basic Information for CVE-2026-126673

Vulnerability Information
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Vulnerability Title
Data::Dump::Streamer versions before 3.00 for Perl allow code injection via unescaped Regexp patterns in _dump_qr
Source: CVE Program / CVE List V5
Vulnerability Description
Data::Dump::Streamer versions before 3.00 for Perl allow code injection via unescaped Regexp patterns in _dump_qr. A Regexp's pattern is written into a qr literal without escaping "$" or "@", so "@{[ ... ]}" and "${\ ... }" in the pattern run as code when the dump is evaluated. An already escaped delimiter gets a second backslash, which leaves the delimiter bare and ends the qr literal early. An attacker who supplies a pattern that an application compiles, dumps and later restores with eval or do can run arbitrary Perl code.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 3.00 -

II. Public POCs for CVE-2026-126673

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III. Intelligence Information for CVE-2026-126673

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Other References for CVE-2026-126673 (1)

IV. Related Vulnerabilities

Same weakness: CWE-94