CVE-2026-16634 (GCVE-0-2026-16634)
Vulnerability from cvelistv5 – Published: 2026-07-24 09:14 – Updated: 2026-07-27 17:15
VLAI
EPSS
VEX
Title
TOML::XS versions before 0.06 for Perl bundle an unsupported and vulnerable version of tomlc99
Summary
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The tomlc99 library is no longer maintained, and has an uncontrolled recursion vulnerability publicly reported in the issue tracker.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.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 17:15 UTC
CWE
Assigner
CPANSec
CNA
References
6 references
| URL | Tags |
|---|---|
| https://metacpan.org/release/FELIPE/TOML-XS-0.06/… | release-notes |
| https://raw.githubusercontent.com/cktan/tomlc99/2… | |
| https://github.com/cktan/tomlc99/issues/97 | issue-tracking |
| https://github.com/cktan/tomlc17 | |
| https://toml.io/en/v1.0.0 | technical-description |
| http://www.openwall.com/lists/oss-security/2026/07/24/4 |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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