CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2025-48934 – Deno.env.toObject() ignores the variables listed in --deny-env and returns all environment variables
https://notcve.org/view.php?id=CVE-2025-48934
04 Jun 2025 — Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to versions 2.1.13 and 2.2.13, the `Deno.env.toObject` method ignores any variables listed in the `--deny-env` option of the `deno run` command. When looking at the documentation of the `--deny-env` option this might lead to a false impression that variables listed in the option are impossible to read. Software relying on the combination of both flags to allow access to most environment variables except a few sensitive ones will be vulnerable ... • https://docs.deno.com/api/deno/~/Deno.Env.toObject • CWE-201: Insertion of Sensitive Information Into Sent Data •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2025-48888 – Deno run with --allow-read and --deny-read flags results in allowed
https://notcve.org/view.php?id=CVE-2025-48888
04 Jun 2025 — Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though 'deny' should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn't be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch. • https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db • CWE-863: Incorrect Authorization •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2025-21620 – Deno's authorization headers not dropped when redirecting cross-origin
https://notcve.org/view.php?id=CVE-2025-21620
06 Jan 2025 — 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 Authorization header, leaking its content to that second domain. This vulnerability is fixed in 2.1.2. Deno es un entorno de ejecución de JavaScript, TypeScript y WebAssembly con valores predeterminados seguros. C... • https://github.com/denoland/deno/security/advisories/GHSA-f27p-cmv8-xhm6 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2024-37150 – Private npm registry support used scope auth token for downloading tarballs
https://notcve.org/view.php?id=CVE-2024-37150
06 Jun 2024 — 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 registry references tarball URLs at a different domain. This includes usage of deno install subcommand, auto-install for npm: specifiers and LSP usage. It is recommended to upgrade to Deno 1.44.1 and if your private ... • https://github.com/denoland/deno/commit/566adb7c0a0c0845e90a6e867a2c0ef5d2ada575 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •