EUVD-2026-77691

flat-to-nested converts a hierarchy from a flat representation to a nested representation. Prior to 1.1.2, FlatToNested.prototype.convert in index.js uses attacker-influenced id and parent record fields directly as keys in the plain temp and pendingChildOf objects. When parent or id is proto,...

CVE-2026-55091 flat-to-nested: Prototype pollution in flat-to-nested convert() via __proto__ parent/id key

flat-to-nested converts a hierarchy from a flat representation to a nested representation. Prior to 1.1.2, FlatToNested.prototype.convert in index.js uses attacker-influenced id and parent record fields directly as keys in the plain temp and pendingChildOf objects. When parent or id is proto,...

CVE-2026-55451

gettext-converter provides gettext resource conversion utilities for JavaScript. Prior to 1.3.3, js2i18next in lib/js2i18next.js splits nested translation keys using options.keyseparator, whose default value consists of two number signs, and uses each segment as a dynamic object key without...

CVE-2026-55451

CVE-2026-55451 is a prototype pollution vulnerability in gettext-converter (NPM, versions ≥1.0.3, ≤1.3.2). The js2i18next() function in lib/js2i18next.js splits nested translation keys on the key separator (default ##) and uses each segment as a dynamic object key without rejecting __proto__, con...

EUVD-2026-77634

gettext-converter provides gettext resource conversion utilities for JavaScript. Prior to 1.3.3, js2i18next in lib/js2i18next.js splits nested translation keys using options.keyseparator, whose default value consists of two number signs, and uses each segment as a dynamic object key without...

CVE-2026-55451 gettext-converter: Prototype pollution in js2i18next() via crafted translation keys

gettext-converter provides gettext resource conversion utilities for JavaScript. Prior to 1.3.3, js2i18next in lib/js2i18next.js splits nested translation keys using options.keyseparator, whose default value consists of two number signs, and uses each segment as a dynamic object key without...

CVE-2026-55451 gettext-converter: Prototype pollution in js2i18next() via crafted translation keys

gettext-converter provides gettext resource conversion utilities for JavaScript. Prior to 1.3.3, js2i18next in lib/js2i18next.js splits nested translation keys using options.keyseparator, whose default value consists of two number signs, and uses each segment as a dynamic object key without...

CVE-2026-55451 gettext-converter: Prototype pollution in js2i18next() via crafted translation keys

gettext-converter provides gettext resource conversion utilities for JavaScript. Prior to 1.3.3, js2i18next in lib/js2i18next.js splits nested translation keys using options.keyseparator, whose default value consists of two number signs, and uses each segment as a dynamic object key without...

CVE-2026-61534

Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type i...

CVE-2026-61534 Yayson: Prototype pollution in the Store/LegacyStore deserialization

Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type i...

CVE-2026-61534

Yayson is a JavaScript library for serializing and reading JSON:API data. Prior to 4.3.0 , Store and LegacyStore use attacker-controlled type, id, and relationship names directly as keys in plain-object lookup tables. A JSON:API document with type: "__proto__" writes onto Object.prototype, giving...

CVE-2026-61534 Yayson: Prototype pollution in the Store/LegacyStore deserialization

Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type i...

EUVD-2026-77579

Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type i...

CVE-2026-61534 Yayson: Prototype pollution in the Store/LegacyStore deserialization

Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type i...

CVE-2026-90771

A flaw was found in joi. This vulnerability, known as prototype pollution, exists in the messages compilation function. A remote attacker can exploit this by supplying specially crafted proto keys in custom messages. This allows the attacker to manipulate object properties, which could lead to...

Astra Linux – Vulnerability in node-lodash

Impact: The fix for CVE-2021-23337 https://github.com/advisories/GHSA-35jh-r3h4-6jhm added validation for the variable option in .template, but did not apply the same validation to options.imports key names. Both paths flow into the same Function constructor sink. When an application passes...

Astra Linux – Vulnerability in Firefox and Thunderbird

If an attacker were able to corrupt the methods of an Array object in JavaScript through prototype pollution, they could have executed JavaScript code under their control in a privileged context. This vulnerability affects Firefox ESR 91.9.1, Firefox 100.0.2, Firefox for Android 100.3.0, and...

Astra Linux – Vulnerability in node-lodash

Prototype pollution attack when using .zipObjectDeep in lodash before 4.17.20...

Astra Linux – Vulnerability in node-form-data

The use of insufficiently random values in form-data allows for HTTP Parameter Pollution HPP. This vulnerability is associated with the program file lib/formdata.Js. This issue affects form-data versions: 2.5.4, 3.0.0 – 3.0.3, 4.0.0 – 4.0.3...

Astra Linux – Vulnerability in node-loader-utils

A prototype pollution vulnerability exists in the parseQuery function in parseQuery.js, within the webpack-loader-utils module. This issue affects all versions prior to 1.4.1 and 2.0.3...