CVE-2023-28445

Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Resizable ArrayBuffers passed to asynchronous functions that are shrunk during the asynchronous operation could result in an out-of-bound read/write. It is unlikely that this has been exploited in the wild, as the...

CVE-2023-22499

Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Multi-threaded programs were able to spoof interactive permission prompt by rewriting the prompt to suggest that program is waiting on user confirmation to unrelated action. A malicious program could clear the...

CVE-2023-26103

Versions of the package deno before 1.31.0 are vulnerable to Regular Expression Denial of Service ReDoS due to the upgradeWebSocket function, which contains regexes in the form of /s,s/, used for splitting the Connection/Upgrade header. A specially crafted Connection/Upgrade header can be used to...

CVE-2023-33966

Deno is a runtime for JavaScript and TypeScript. In deno 1.34.0 and denoruntime 0.114.0, outbound HTTP requests made using the built-in node:http or node:https modules are incorrectly not checked against the network permission allow list --allow-net. Dependencies relying on these built-in modules...

CVE-2021-32619

Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. In Deno versions 1.5.0 to 1.10.1, modules that are dynamically imported through import or new Worker might have been able to bypass network and file system permission checks when statically importing other modules...

GHSA-PG9F-39PC-QF8G vulnerabilities

Vulnerabilities for packages: oranda, yara-x, starship, yazi, oxipng, deno, cargo-c, cargo-audit, nushell, pixi, samply, wadm, rust-analyzer, ruff, fd, wasmcloud, zed, lychee...

GHSA-PG9F-39PC-QF8G vulnerabilities

Vulnerabilities for packages: yara-x, lychee, oxipng, ruff, pixi, yazi, ztunnel, rust-analyzer, cargo-audit, samply, wadm, oranda, wasmcloud, fd, deno, cargo-c, nushell, zed, starship...

GHSA-4P46-PWFR-66X6 vulnerabilities

Vulnerabilities for packages: lychee, sdp-k8s-injector, rye, atuin, parseable, pixi, buck2, linkerd2-proxy, qdrant, wasm-pack, sccache, rustls-ffi, tealdeer, cargo-audit, samply, linkerd-extension-init, xh, wadm, oranda, wasmcloud, deno, kdash, rustup, wash, nushell, shadowsocks-rust, zizmor, fnm...

GHSA-V7PC-74H8-XQ2H vulnerabilities

Vulnerabilities for packages: linkerd2-proxy, shadowsocks-rust, deno...

CVE-2025-21620

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch redirect handling creates a follow-up redirect request that keeps the original...

CVE-2022-24783

Deno is a runtime for JavaScript and TypeScript. The versions of Deno between release 1.18.0 and 1.20.2 inclusive are vulnerable to an attack where a malicious actor controlling the code executed in a Deno runtime could bypass all permission checks and execute arbitrary shell code. This...

CVE-2024-32477

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. By using ANSI escape sequences and a race between libc::tcflush0, libc::TCIFLUSH and reading standard input, it's possible to manipulate the permission prompt and force it to allow an unsafe action regardless of the...

CVE-2024-27936

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. Starting in version 1.32.1 and prior to version 1.41.0 of the deno library, maliciously crafted permission request can show the spoofed permission prompt by inserting a broken ANSI escape sequence into the request...

CVE-2024-27934

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.36.2 and prior to version 1.40.3, use of inherently unsafe const cvoid and ExternalPointer leads to use-after-free access of the underlying structure, resulting in arbitrary code execution. Use of inherently unsafe...

CVE-2024-27935

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.35.1 and prior to version 1.36.3, a vulnerability in Deno's Node.js compatibility runtime allows for cross-session data contamination during simultaneous asynchronous reads from Node.js streams sourced from sockets o...

CVE-2024-37150

An issue in .npmrc support in Deno 1.44.0 was discovered where Deno would send .npmrc credentials for the scope to the tarball URL when the registry provided URLs for a tarball on a different domain. All users relying on .npmrc are potentially affected by this vulnerability if their private...

SUSE CVE-2025-21620

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch redirect handling creates a follow-up redirect request that keeps the original...

CVE-2025-21620

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch redirect handling creates a follow-up redirect request that keeps the original...

CVE-2025-21620

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch redirect handling creates a follow-up redirect request that keeps the original...

GHSA-F27P-CMV8-XHM6 fetch: Authorization headers not dropped when redirecting cross-origin

Summary When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch redirect handling creates a follow-up redirect request that keeps the original Authorization header, leaking its content to that second domain. Details...