CVE-2023-22499

CVE-2023-22499 (Deno) describes a race-condition vulnerability where multi-threaded code could spoof the interactive permission prompt by rewriting the prompt, potentially clearing the terminal and displaying a generic message. Affected component: Deno runtime (JavaScript/TypeScript, built with R...

CVE-2024-37150

CVE-2024-37150 affects Deno 1.44.0, where Deno would send .npmrc credentials for a scope to tarball URLs when the registry serves tarballs from a different domain. This could expose private registry credentials if tarball URLs point offsite. The issue impacts users relying on .npmrc in scenarios ...

CVE-2022-24783

CVE-2022-24783 (Deno runtime) affects Deno versions 1.18.0–1.20.2 inclusive, where a malicious actor controlling code could bypass permission checks and execute arbitrary shell code within the Deno runtime. The issue does not affect Deno Deploy. The vulnerability has been patched in Deno 1.20.3. ...

CVE-2024-27933

Summary: CVE-2024-27933 affects Deno 1.39.0, where use of raw file descriptors in op_node_ipc_pipe() can prematurely close arbitrary fds, enabling silent permission-prompt bypass and potential arbitrary code execution on the host when an attacker controls code in the Deno runtime. The issue arise...

CVE-2021-32619

Summary: CVE-2021-32619 affects Deno runtimes 1.5.0–1.10.1. A vulnerability in modules dynamically imported via import() or new Worker could bypass network and file-system permission checks when statically importing other modules. Impact (as described): attackers controlling a module in a program...

CVE-2024-27936

CVE-2024-27936 (Deno) affects Deno runtime prior to 1.41.0. Maliciously crafted permission requests could inject a broken ANSI escape sequence, causing the prompt to display spoofed content (e.g., file path or program name) while permissions granted reflect the original input. This is resolved in...

CVE-2024-27931

CVE-2024-27931 concerns Deno, a JavaScript/TypeScript runtime. The issue is insufficient validation of parameters in the Deno.makeTemp* APIs, which can allow a user to create files outside of the intended directories via path traversal in the provided prefix/suffix. The documented impact is poten...

CVE-2024-27934

CVE-2024-27934 affects Deno (JavaScript/TypeScript runtime). From versions 1.36.2 through 1.40.3, use of unsafe *const c_void and ExternalPointer can cause use-after-free of internal structures, enabling arbitrary code execution when an attacker controls code in the Deno runtime. The issue is rep...

CVE-2024-27935

Vulnerability summary (CVE-2024-27935): Deno’s Node.js compatibility runtime is vulnerable in versions 1.35.1 through 1.36.2 (up to but not including 1.36.3). A bug in stream_wrap.ts reuses a global buffer (BUF) to optimize asynchronous reads from Node.js streams, enabling cross-session data cont...

CVE-2023-28445

CVE-2023-28445 affects Deno (Rust-based runtime for JavaScript/TypeScript). The issue arises from resizing ArrayBuffers passed to asynchronous functions that are shrunk during the operation, potentially causing an out-of-bounds read/write. The only affected release is Deno 1.32.0; Deno Deploy is ...

CVE-2024-34346

CVE-2024-34346 affects Deno and describes a permission-escalation via opening privileged files (e.g., reading /proc/self/environ, writing /proc/self/mem) when sandbox permissions are opened with --allow-read/--allow-write. The issue arises because the sandbox can be weakened if deny flags are not...

CVE-2024-32477

The CVE-2024-32477 vulnerability affects Deno versions prior to 1.42.2, caused by a race between ANSI escape sequences (e.g., ) and reading standard input. This allows an attacker to manipulate the permission prompt and bypass the permission policy via the PTY channel. Several connected sourc...

CVE-2025-24015

Deno (JavaScript/TypeScript/WebAssembly runtime) versions 1.46.0–2.1.6 suffer from a bug where AES-256-GCM and AES-128-GCM authentication tags are not validated, allowing tampered ciphertexts or incorrect keys to bypass integrity checks. The issue also affects AAD within GCM (set_aad), underminin...

CVE-2025-48934

CVE-2025-48934 affects Deno runtime prior to v2.1.13 and v2.2.13, where Deno.env.toObject() can reveal environment variables despite --deny-env, due to the reading of variables exempt from the deny filter. The issue allows code to access most environment variables via toObject, potentially leakin...

CVE-2021-41641

CVE-2021-41641 affects Deno up to version 1.14.0, where the file sandbox mishandles symbolic links. When Deno runs with specific write access, the Deno.symlink method can be used to gain access to arbitrary directories. Multiple connected advisories (Red Hat, GHSA, OSV, NVD listings) describe the...

CVE-2024-27932

The CVE-2024-27932 issue affects Deno (JavaScript/TypeScript/Wasmtime runtime). The vulnerability arises from an improper check in the import descriptor hostname logic (in the auth_tokens.rs path) where a token hostname is not correctly constrained to its domain, allowing a token intended for exa...

CVE-2023-26103

CVE-2023-26103 affects Deno before 1.31.0, where upgradeWebSocket uses regexes /s*,s*/ to split Connection/Upgrade headers, enabling a Regular Expression Denial of Service that can significantly slow a WebSocket server. Multiple connected sources confirm the issue and state a patch in Deno 1.31.0...

CVE-2025-48888

The CVE-2025-48888 vulnerability affects Deno runtimes where the --deny-* flags are not correctly prioritized over matching --allow-* flags. Affected versions: 1.41.3 through 2.1.12 (and mixed ranges up to 2.3.1 in PT-Security doc). The issue occurs with the command deno run --allow-read --deny-r...

CVE-2025-48935

CVE-2025-48935 (Deno) affects Deno runtimes from 2.2.0 up to 2.2.4, where the read/write database permission check can be bypassed via the ATTACH DATABASE statement. The issue is resolved in version 2.2.5. Impact described in sources indicates a bypass of permission checks (read/write permission)...

CVE-2023-33966

Deno 1.34.0 and deno_runtime 0.114.0 allow outbound HTTP requests via built-in node:http/node:https without checking the network allow-list. This affects dependencies using these modules. The issue is patched in Deno v1.34.1 and deno_runtime 0.114.1; update all affected installations. Deno Deploy...

CVE-2023-28446

CVE-2023-28446 affects the Deno runtime and allows a malicious program to spoof the interactive permission prompts (op_spawn_child/op_kill) by inserting or abusing ANSI escape sequences, causing the prompt to display one text while granting another. Root cause: inadequate ANSI filtering in the pe...

CVE-2026-22864

CVE-2026-22864 affects Deno before version 2.5.6. The patch intended to block spawning Windows batch/shell files checked the extension against lowercase .bat/.cmd using a case-sensitive comparison, which can be bypassed by alternate casing (e.g., .BAT/.Bat). This results in a case-insensitive-lik...

CVE-2026-55517

CVE-2026-55517 affects Deno prior to 2.7.5, where a client WebSocket handshake could crash the process if the server returned non-ASCII bytes in Sec-WebSocket-Protocol or Sec-WebSocket-Extensions headers. The root cause is parsing those headers as ASCII strings, triggering a panic when non-printa...

CVE-2026-44726

Summary: CVE-2026-44726 affects Deno up to 2.7.7, where a flaw in Deno’s Node.js TLS compatibility layer can cause plaintext data to be sent after a connection retry when autoSelectFamily is enabled. The root cause is that the socket reinitialization path reuses a stale TLS upgrade hook tied to t...

CVE-2026-22863

Deno before 2.6.0 is affected: node:crypto does not finalize the cipher, enabling an attacker to generate an unlimited number of encryptions and potentially mount brute‑force/secret‑learning attempts. The issue impacts cryptographic operations that could reveal server secrets; exploitation is des...

CVE-2026-49860

Summary of CVE-2026-49860 (Deno) A WebSocket sandbox bypass affects Deno prior to 2.8.1. When a WebSocket connection is opened, Deno checked the destination hostname against --deny-net rules but did not re-check the IPs that the hostname resolved to, allowing an attacker-controlled domain to reso...

CVE-2026-49859

CVE-2026-49859 affects Deno before version 2.8.1. The bug occurs in fetch() where Deno checked the destination hostname against --deny-net rules but did not re-check the IP addresses that the hostname resolves to, allowing an attacker-controlled domain that passes the hostname check to resolve to...

CVE-2025-61787

Deno prior to 2.5.3 and 2.2.15 is vulnerable to Windows batch file command-injection because CreateProcess() can spawn cmd.exe when executing batch files (.bat/.cmd), enabling user-controlled argument injection (e.g., triggering calc.exe). CVE-2025-61787 states these issues are fixed in 2.5.3 and...

CVE-2026-27190

Deno prior to 2.6.8 contains a command injection in the node:child_process polyfill when shell: true is used, fixed in 2.6.8 (CVE-2026-27190). Red Hat and other sources corroborate the fix in 2.6.8. A related follow-on (CVE-2026-32260) describes a bypass of the 27190 fix in 2.7.0–2.7.1 due to a p...

CVE-2026-49983

Summary of CVE-2026-49983 details (Deno): Deno’s process.loadEnvFile() incorrectly bypasses env permission checks. It only verifies read permission on the dotenv file and then writes all keys from the file into process.env, even if env access is denied. This means that with --allow-read and a wri...

CVE-2026-49401

CVE-2026-49401 describes a permission bypass in Deno on macOS APFS prior to v2.7.14. The denial checks for --deny-read/--deny-write/--deny-run/--deny-ffi were performed at the raw-byte level, but APFS considers different Unicode spellings of the same name as the same file. This allowed a process ...

CVE-2026-49402

Deno is affected by CVE-2026-49402 on Windows when using node:child_process with shell: true. The escapeShellArg() helper failed to properly quote arguments containing cmd.exe metacharacters (e.g., &, |, , ^, !, (, )), and did not neutralize % inside double-quoted strings. This allowed an attacke...

CVE-2026-49411

Summary (technical, grounded): CVE-2026-49411 affects Deno’s Node.js compatibility TCP path. Prior to v2.8.0, permission checks for deny-net were performed on the original hostname string before DNS resolution and not re-checked after resolution. This allowed a numeric IP alias (for example 21307...

CVE-2025-61785

Summary : CVE-2025-61785 affects Deno versions prior to 2.5.3 and 2.2.15, where Deno.FsFile.prototype.utime and utimeSync are not properly restricted by --deny-write=./. This allows changing atime/mtime on a read-only opened file even when write is disallowed, bypassing the permission model. The ...

CVE-2026-32260

Summary: CVE-2026-32260 affects Deno’s node:child_process polyfill (shell: true mode). From 2.7.0 to 2.7.1, a two-stage argument sanitization in transformDenoShellCommand contains a priority bug: when an argument includes a $VAR pattern, it is wrapped in double quotes instead of single quotes. Th...

CVE-2026-49440

Summary: CVE-2026-49440 affects Deno’s crypto.primality tests when using default options (checks=0) for checkPrime/checkPrimeSync, causing some composites to be reported as prime due to zero Miller-Rabin rounds. This occurs in the node:crypto path and related op_node_check_prime implementations; ...

CVE-2026-49406

The CVE describes a vulnerability in Deno when run in BYONM mode (nodeModulesDir: "manual"): the module resolver could bypass the read boundary by resolving a package.json main field containing .. segments, allowing a malicious package to read files outside the approved --allow-read scope via req...

CVE-2025-61786

CVE-2025-61786 affects the Deno runtime: prior to versions 2.5.3 and 2.2.15, Deno.FsFile.prototype.stat and Deno.FsFile.prototype.statSync bypass the permission check when --deny-read=./ is used, allowing retrieval of file stats from files the user does not have explicit read access to. The vulne...