CVE-2026-16634

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 The tomlc99 library is no longer maintained, and has an uncontrolled recursion vulnerability publicly reported in the issue tracker.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

References

https://toml.io/en/v1.0.0

https://raw.githubusercontent.com/cktan/tomlc99/29076dfd095bbbbd50a3c1b2760d29f4b83e74ac/README.md

https://metacpan.org/release/FELIPE/TOML-XS-0.06/changes

https://github.com/cktan/tomlc99/issues/97

https://github.com/cktan/tomlc17

http://www.openwall.com/lists/oss-security/2026/07/24/4

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS