GHSA-WP3C-266W-4QFQ js-toml vulnerable to CPU exhaustion via O(n^2) BigInt construction on radix-prefixed integer literals

Summary js-toml versions up to and including 1.1.0 parse hexadecimal / octal / binary integer literals via a hand-written parseBigInt loop that multiplies a BigInt accumulator by the radix once per input digit. Each iteration performs a BigInt BigInt operation on an accumulator that grows linearl...

PT-2026-51007

Name of the Vulnerable Software and Affected Versions js-toml versions prior to 1.1.1 Description The software contains a quadratic time complexity issue during the parsing of hexadecimal, octal, and binary integer literals. This occurs because the parseBigInt function uses a loop that performs a...