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EUVD-2026-339196

fkie_cve-2026-46681

@nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the _copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys (__proto__, constructor, prototype). This allows an attacker to pollute the prototype chain of all objects in the application. Version 0.14.0 patches the issue.

GHSA-x7j8-49r8-mr43 — @nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty

Affected: npm: @nevware21/ts-utils

## Summary

The _copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys (__proto__, constructor, prototype). This allows an attacker to pollute the prototype chain of all objects in the application.

## Details

In _copyProps() (copy.ts lines 186-191), the code iterates all enumerable properties including inherited ones and dangerous keys like __proto__. Any object with a __proto__ key (e.g., from untrusted JSON input) will overwrite the target's prototype.

## PoC ``` const malicious = JSON.parse('{"__proto__": {"polluted": true}}'); objDeepCopy(malicious); console.log({}.polluted); // true ``` ## Suggested Fix

Add objHasOwnProperty check and filter __proto__, constructor, prototype keys.

RHSA-2026:62260 — Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.30.0 Release.

netty: netty-codec-http2: Netty MadeYouReset HTTP/2 DDoS Vulnerability curl: curl: Insecure connection establishment due to TLS configuration mismatch shell-quote: shell-quote: Arbitrary code execution via command injection due to unescaped line terminators curl: curl: Man-in-the-middle attack via SSH host key bypass org.eclipse.parsson/parsson: Eclipse Parsson: Denial of Service via uncontrolled resource consumption in JSON parsing jetty-security: Eclipse Jetty: Authentication bypass via Digest authentication encoding collision jetty: Eclipse Jetty: Information disclosure due to retained HTTP/1.1 trailers across connections form-data: form-data: Form field override via CRLF injection undici: undici: Denial of Service due to unbounded memory growth via WebSocket frames brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity vertx-core: Eclipse Vert.x: Information disclosure via improper handling of HTTP 30x redirects io.vertx/vertx-web: Eclipse Vert.x Web Client: Information disclosure via improper cookie domain validation golang.org/x/net/html: golang: golang.org/x/net/html: Cross-Site Scripting via HTML parsing bypass github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object net/mail: golang: Go net/mail: Denial of Service via crafted email inputs golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Security key bypass due to missing user presence check golang.org/x/cryp…