CVE-2025-59466

Summary: CVE-2025-59466 describes an issue in Node.js error handling where uncatchable stack-overflow crashes occur when async_hooks.createHook() is enabled. The crash bypasses uncaughtException handling and can cause process termination under deep recursion, affecting applications using AsyncLoc...

CVE-2026-21710

Summary: CVE-2026-21710 is a denial-of-service-type issue in Node.js HTTP request handling triggered by a header named __proto__ accessed via req.headersDistinct, which can cause an uncaught TypeError and crash the process when dest["proto "] resolves to Object.prototype and .push() is called on ...

CVE-2026-21637

CVE-2026-21637 is a Node.js TLS handling issue where synchronous exceptions in PSK/ALPN callbacks can bypass tlsClientError/error paths, causing process termination or FD leaks and potential DoS. Connected advisories (ALAS2023-2026-1404, ALAS2023-2026-1402, ALAS2023-2026-1403, CBLMARINER) confirm...

CVE-2025-55130

The CVE-2025-55130 entry describes a path traversal bypass in Node.js permission model: crafted relative symlink paths can cause reads/writes outside the allowed directory when --allow-fs-read/--allow-fs-write checks pass, enabling read/write of sensitive files and potential system compromise. Af...

CVE-2026-21714

CVE-2026-21714 is a memory leak in Node.js HTTP/2 that occurs when a client sends WINDOW_UPDATE frames on stream 0, preventing proper Http2Session cleanup and potentially exhausting resources. Affected: Node.js 20, 22, 24, and 25. Connected advisories report fixes in downstream distributions: e.g...

CVE-2025-59465

CVE-2025-59465 is observed affecting Node.js packages across multiple Amazon Linux and Fedora advisories. The issue concerns Node.js HTTP/2 server handling of malformed HEADERS frames with oversized HPACK data, leading to a crash via an unhandled TLSSocket error (ECONNRESET) and remote DoS. Affec...

CVE-2026-21716

CVE-2026-21716 : An incomplete fix for CVE-2024-36137 leaves FileHandle.chmod() and FileHandle.chown() in the promises API without required permission checks, while their callback-based counterparts were patched. This can allow code running under --permission with a restricted --allow-fs-write to...

CVE-2026-21713

CVE-2026-21713 (Node.js HMAC timing side-channel) involves a non-constant-time comparison in HMAC verification, exposing potential timing information proportional to the number of matching bytes. The issue is present across 20.x, 22.x, 24.x, and 25.x releases. The advisories note that Node.js alr...

CVE-2026-21636

CVE-2026-21636 describes a security flaw in Node.js’s Permissions model where Unix Domain Socket (UDS) connections can bypass network restrictions even when --allow-net is not enabled. Attacker-controlled inputs (e.g., URLs or socketPath) could reach arbitrary local sockets via net, tls, or undic...

CVE-2026-21717

CVE-2026-21717 affects multiple Node.js releases (nodejs20, nodejs22, nodejs24, nodejs25) with the root cause in V8 string hashing causing integer-like strings to hash to their numeric value, enabling hash collisions that can degrade Node.js process performance. Public details show nodejs24 is af...

CVE-2025-55132

The Connected documents confirm CVE-2025-55132: Node.js’ fs.futimes() can bypass the Read-Only permission model, allowing modification of file timestamps even when a process has only read access. Affected products are Node.js releases in the 20/22/24/25 lineages. Impact is potential log tampering...

CVE-2026-21711

CVE-2026-21711 is a Node.js vulnerability describing a permission-check bypass in the Unix Domain Socket (UDS) handling under the Permission Model. The flaw allows code running with --permission and without --allow-net to create and expose local IPC endpoints, enabling potential cross-process com...

CVE-2026-21715

The CVE-2026-21715 issue affects Node.js in the 20.x, 22.x, 24.x and 25.x streams with the Permission Model. The root cause is that fs.realpathSync.native() bypasses required read-permission checks, allowing code running with --permission and restricted --allow-fs-read to reveal file existence, r...

CVE-2026-21712

CVE-2026-21712 affects the Node.js package nodejs24 for versions less than 24.14.1-1 . The issue is a flaw in Node.js URL processing that triggers an assertion failure in native code when url.format() is called with a malformed internationalized domain name (IDN) containing invalid characters, cr...