toml-node: Quadratic-complexity DoS via many array-of-tables headers in toml.parse()

[ Description ]Official description

toml-node is a TOML parser for Node.js and the browser. Prior to 5.0.1, the toml.parse() compiler's addTableArray() function in lib/compiler.js rescans the complete assignedPaths and valueAssignments bookkeeping sets for every array-of-tables header. Distinct [[name]] paths are not pruned, so a document with many such headers causes quadratic synchronous work and can block the Node.js event loop, denying service to other operations in the process. This issue is fixed in version 5.0.1.

[ Fixes ]Fixes and patches

• toml 5.0.1Fixed version · GitHub Advisories · npm package toml: upgrade to 5.0.1 or later (affected <= 5.0.0)

[ Packages ]Affected open-source packages

• toml npmAffected <= 5.0.0 · fixed in 5.0.1 · GHSA-4qx8-w7c3-pj3p

[ References ]References

• github.com/BinaryMuse/toml-node/commit/609c873fffea0a27ebe5b4dd098eed2b3daf3606
• github.com/BinaryMuse/toml-node/releases/tag/v5.0.1
• github.com/BinaryMuse/toml-node/security/advisories/GHSA-4qx8-w7c3-pj3p