CVE-2026-77465toml-node: Uncontrolled Recursion
Updated under an hour ago ()
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It affects BinaryMuse toml-node. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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toml-node is a TOML parser for Node.js and the browser. Prior to 4.2.0, toml.parse() uses a Peggy 5.1.0 generated recursive-descent parser in lib/parser.js whose peg$parsevalue, peg$parsearray, and peg$parseinline_table_entry functions recurse through nested arrays and inline tables without a depth limit. A remote unauthenticated application parsing an attacker-controlled TOML document containing a few thousand nested arrays or inline tables can exhaust the Node.js call stack, raise an unexpected RangeError rather than the parser's SyntaxError, and terminate an unprotected request worker or process. The corresponding grammar source is src/toml.pegjs, where the generated parser must be bounded. This issue is fixed in version 4.2.0.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-674
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
BinaryMuse toml-node binarymuse:toml_node (from the name) | before 4.2.0 | CNA record |
References
- https://github.com/BinaryMuse/toml-node/security/advisories/GHSA-82x6-q7mm-w9cfx-refsource-confirm
- https://github.com/BinaryMuse/toml-node/pull/72x-refsource-misc
- https://github.com/BinaryMuse/toml-node/commit/967b8b06754f3ecd9863cea118dc50792a8c353fx-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.