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CVE-2026-16634— TOML::XS versions before 0.06 for Perl bundle an unsupported and vulnerable version of tomlc99

Quick assessment

Affected
FELIPE TOML::XS
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.

FELIPE TOML::XS是FELIPE个人开发者的一款解析TOML格式的Perl模块。 FELIPE TOML::XS 0.06之前版本存在软件供应链问题漏洞，该漏洞源于捆绑了不受支持的tomlc99版本，且tomlc99存在未受控的递归漏洞，可能导致向from_toml传递未受信任的TOML的用户因深层嵌套文档触发栈溢出。

AI Predicted 7.5 Difficulty: Easy EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
FELIPE TOML::XS < 0.06 affected
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I. Basic Information for CVE-2026-16634

Vulnerability Information
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Vulnerability Title
TOML::XS versions before 0.06 for Perl bundle an unsupported and vulnerable version of tomlc99
Source: CVE Program / CVE List V5
Vulnerability Description
TOML::XS versions before 0.06 for Perl bundle an unsupported and vulnerable version of tomlc99. The tomlc99 library is no longer maintained, and has an uncontrolled recursion vulnerability publicly reported in the issue tracker. Any caller that passes untrusted TOML to from_toml risks a stack overflow from a deeply-nested document. TOML::XS version 0.06 or later uses the successor tomlc17 library.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用未维护的第三方组件
Source: CVE Program / CVE List V5
Vulnerability Title
FELIPE TOML::XS 软件供应链问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FELIPE TOML::XS是FELIPE个人开发者的一款解析TOML格式的Perl模块。 FELIPE TOML::XS 0.06之前版本存在软件供应链问题漏洞，该漏洞源于捆绑了不受支持的tomlc99版本，且tomlc99存在未受控的递归漏洞，可能导致向from_toml传递未受信任的TOML的用户因深层嵌套文档触发栈溢出。
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
FELIPE TOML::XS 0 ~ 0.06 -

II. Public POCs for CVE-2026-16634

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III. Intelligence Information for CVE-2026-16634

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Vendor Advisories for CVE-2026-16634 (1)

Other References for CVE-2026-16634 (3)

IV. Related Vulnerabilities

Same weakness: CWE-1104

V. Comments for CVE-2026-16634

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