FELIPE TOML::XS up to 0.05 from_toml recursion

Summaryinfo

A vulnerability was found in FELIPE TOML::XS up to 0.05. It has been rated as critical. Impacted is the function from_toml. Performing a manipulation results in recursion. This vulnerability was named CVE-2026-16634. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in FELIPE TOML::XS up to 0.05. It has been classified as critical. This affects the function from_toml. The manipulation with an unknown input leads to a recursion vulnerability. CWE is classifying the issue as CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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 The tomlc99 library is no longer maintained, and has an uncontrolled recursion vulnerability publicly reported in the issue tracker.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.

The advisory is shared at metacpan.org. This vulnerability is uniquely identified as CVE-2026-16634 since 07/22/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 0.06 eliminates this vulnerability.

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Productinfo

Vendor

• FELIPE

Name

• TOML::XS

Version

• 0.05

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

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