GHSA-V5MP-JGW5-2X6J toml-node: Prototype Pollution Leads to `Object.prototype` Corruption via `__proto__` Key-Path Desynchronization

Summary toml.parse writes attacker-controlled keys onto Object.prototype. The compiler protects the tables it builds by creating them with Object.createnull, which neutralizes a direct proto table. An attacker bypasses that protection by routing a table path through a scalar value and into the re...

@fancyliu/speclite (>=0.1.0, <=0.4.1), actual-moneymoney (>=3.0.0, <=3.6.0) +1 more potentially affected by CVE-2026-63376 via toml (4.1.1)

toml NPM version 4.1.1 is affected by a known vulnerability. The following packages have a transitive dependency on toml and may be impacted: - @fancyliu/speclite =0.1.0, =3.0.0, =2.7.0, =2.11.3 Source cves: CVE-2026-63376 Source advisory: SNYK:JS-TOML-19639693...

@fancyliu/speclite (>=0.1.0, <=0.4.1), actual-moneymoney (>=3.0.0, <=3.6.0) +1 more potentially affected by CVE-2026-63376 via toml (4.1.1)

toml NPM version 4.1.1 is affected by a known vulnerability. The following packages have a transitive dependency on toml and may be impacted: - @fancyliu/speclite =0.1.0, =3.0.0, =2.7.0, =2.11.3 Source cves: CVE-2026-63376 Source advisory: OSV:GHSA-V5MP-JGW5-2X6J...

CVE-2026-77465 toml-node: Uncontrolled Recursion

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$parseinlinetableentry functions recurse through nested arrays and inline tables without a depth...

CVE-2026-77465 toml-node: Uncontrolled Recursion

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$parseinlinetableentry functions recurse through nested arrays and inline tables without a depth...

CVE-2026-77465

toml-node is a TOML parser for Node.js and the browser. Prior to 4.2.0 , the Peggy 5.1.0-generated recursive-descent parser in lib/parser.js has functions (peg$parsevalue, peg$parsearray, peg$parseinline_table_entry) that recurse through nested arrays and inline tables without a depth limit . A r...

CVE-2026-77465 toml-node: Uncontrolled Recursion

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$parseinlinetableentry functions recurse through nested arrays and inline tables without a depth...

EUVD-2026-70739

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$parseinlinetableentry functions recurse through nested arrays and inline tables without a depth...

CVE-2026-63376 toml-node: Prototype Pollution Leads to `Object.prototype` Corruption via `__proto__` Key-Path Desynchronization

toml-node is a TOML parser for Node.js and the browser. Prior to 4.1.2, toml.parse in lib/compiler.js can be tricked by a table path such as a.b.y.proto.proto, allowing traversal from a scalar value into Number.prototype and Object.prototype. The currentPath tracking value uses both arrays and...

CVE-2026-63376

toml-node , a TOML parser for Node.js and the browser, is affected by a prototype pollution vulnerability in toml.parse() (lib/compiler.js) prior to version 4.1.2. The root cause is a key-path desynchronization : currentPath tracking uses both arrays and strings, so valueAssignments records a com...

CVE-2026-63376 toml-node: Prototype Pollution Leads to `Object.prototype` Corruption via `__proto__` Key-Path Desynchronization

toml-node is a TOML parser for Node.js and the browser. Prior to 4.1.2, toml.parse in lib/compiler.js can be tricked by a table path such as a.b.y.proto.proto, allowing traversal from a scalar value into Number.prototype and Object.prototype. The currentPath tracking value uses both arrays and...

CVE-2026-63376 toml-node: Prototype Pollution Leads to `Object.prototype` Corruption via `__proto__` Key-Path Desynchronization

toml-node is a TOML parser for Node.js and the browser. Prior to 4.1.2, toml.parse in lib/compiler.js can be tricked by a table path such as a.b.y.proto.proto, allowing traversal from a scalar value into Number.prototype and Object.prototype. The currentPath tracking value uses both arrays and...

EUVD-2026-70738

toml-node is a TOML parser for Node.js and the browser. Prior to 4.1.2, toml.parse in lib/compiler.js can be tricked by a table path such as a.b.y.proto.proto, allowing traversal from a scalar value into Number.prototype and Object.prototype. The currentPath tracking value uses both arrays and...

PT-2026-85341

Summary toml.parse crashes with an uncaught RangeError: Maximum call stack size exceeded when parsing deeply nested arrays or inline tables. The parser is generated by Peggy 5.1.0 a PEG parser generator as a recursive-descent parser; the value rule mutually recurses with the array and inline-tabl...

PT-2026-85360

Summary toml.parse writes attacker-controlled keys onto Object.prototype. The compiler protects the tables it builds by creating them with Object.createnull, which neutralizes a direct proto table. An attacker bypasses that protection by routing a table path through a scalar value and into the re...

PT-2026-85248

Name of the Vulnerable Software and Affected Versions toml-node versions prior to 4.2.0 Description A remote unauthenticated attacker can cause a denial of service in Node.js applications by providing a specially crafted TOML document. The toml.parse function uses a recursive-descent parser that...

CVE-2026-77465: Uncontrolled Recursion

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$parseinlinetableentry functions recurse through nested arrays and inline tables without a depth...

CVE-2026-63376: Improperly Controlled Modification of Object Prototype Attributes

toml-node is a TOML parser for Node.js and the browser. Prior to 4.1.2, toml.parse in lib/compiler.js can be tricked by a table path such as a.b.y.proto.proto, allowing traversal from a scalar value into Number.prototype and Object.prototype. The currentPath tracking value uses both arrays and...

PT-2026-85247

Name of the Vulnerable Software and Affected Versions toml-node versions prior to 4.1.2 Description the toml.parse function in lib/compiler.js allows an attacker to write arbitrary keys onto Object.prototype by routing a table path through a scalar value. This occurs because the deepRef function...

CVE-2026-50029

js-toml is a TOML parser for JavaScript, Prior to version 1.1.2, the interpreter checks whether a key already exists in a parser-built container with if objectkey instead of if key in object. When the prior value is a falsy primitive — false, 0, 0n, 0.0, -0, or "" — the duplicate-key branch is...