Uncontrolled Recursion Affecting org.webjars.npm:toml package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGWEBJARSNPM-19639696
- published7 Sept 2026
- disclosed3 Sept 2026
- creditSeokhee Chang
Introduced: 3 Sep 2026
NewCVE-2026-77465 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion in lib/parser.js, where the mutually recursive peg$parsevalue(), peg$parsearray(), and peg$parseinline_table_entry() functions recurse to the input's nesting depth with no depth limit. An attacker can crash the process with a RangeError: Maximum call stack size exceeded by supplying a deeply nested TOML document, such as a ~6 KB payload nested about 2,500 levels (a=[[[...]]]). This requires the application to call toml.parse() on untrusted input, and error handlers that catch only SyntaxError do not contain the resulting RangeError, which is not a SyntaxError subclass.