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CVE-2026-77465— toml-node: Uncontrolled Recursion

Quick assessment

Affected
BinaryMuse toml-node
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Michelle Tilley TOML Parser for Node.js是Michelle Tilley个人开发者的一款TOML格式解析器。 Michelle Tilley TOML Parser for Node.js 4.2.0之前版本存在资源管理错误漏洞，该漏洞源于解析器在解析嵌套数组和内联表时未设置深度限制，可能耗尽Node.js调用栈并导致拒绝服务。

CVSS 7.5 · High EPSS 0.36% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
BinaryMuse toml-node < 4.2.0 affected
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I. Basic Information for CVE-2026-77465

Vulnerability Information
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Vulnerability Title
toml-node: Uncontrolled Recursion
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
Michelle Tilley TOML Parser for Node.js 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Michelle Tilley TOML Parser for Node.js是Michelle Tilley个人开发者的一款TOML格式解析器。 Michelle Tilley TOML Parser for Node.js 4.2.0之前版本存在资源管理错误漏洞，该漏洞源于解析器在解析嵌套数组和内联表时未设置深度限制，可能耗尽Node.js调用栈并导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
BinaryMuse toml-node < 4.2.0 -

II. Public POCs for CVE-2026-77465

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III. Intelligence Information for CVE-2026-77465

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Patches & Fixes for CVE-2026-77465 (2)

Vendor Advisories for CVE-2026-77465 (1)

IV. Related Vulnerabilities

Same product: toml-node
Same vendor: BinaryMuse
Same weakness: CWE-674

V. Comments for CVE-2026-77465

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