vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector

Reporter - Name or handle: YMsora - Report date: 2026-08-14 Summary The latest published vm2 release, 3.11.5, and the current main branch are vulnerable to a sandbox escape when used on Node.js 26. An ordinary fulfilled Promise created by an async function can retain an attacker-controlled...

EUVD-2026-81593

vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector...

GHSA-27G9-P43V-CW3V vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector

Reporter - Name or handle: YMsora - Report date: 2026-08-14 Summary The latest published vm2 release, 3.11.5, and the current main branch are vulnerable to a sandbox escape when used on Node.js 26. An ordinary fulfilled Promise created by an async function can retain an attacker-controlled...

EUVD-2026-83362

devalue: stringify/uneval serialize shared memory...

devalue: `stringify`/`uneval` serialize shared memory

Impact stringify and uneval serialize a typed array by emitting its backing ArrayBuffer, not just the view. In the case of a Node Buffer object, the backing buffer is a process-wide shared pool, meaning unrelated memory can be serialized into a response that is then sent to the client. For a Node...

GHSA-X5RW-Q4PP-HG5G devalue: stringifyAsync can cause an unhandled rejection despite a caught returned promise

When serializing multiple promises, a later promise can reject before an earlier one settles. An internal rejected promise remains unhandled even if the caller catches the returned stringifyAsync promise. Under Node's default unhandled-rejection behavior this can terminate the process. Applicatio...

Uncaught Exception

Overview devalue is a JSON.stringify, but handles cyclical references, repeated references, undefined, regular expressions, dates, Map and Set. Affected versions of this package are vulnerable to Uncaught Exception via unhandled Promise rejections in stringifyAsync within src/stringify.js. When a...

fast-uri: fast-uri: Host confusion via skipped IDN canonicalization

A flaw was found in fast-uri, a URI parser for Node.js. This vulnerability arises because the parser fails to consistently convert internationalized domain names IDN to their standard ASCII form when processing scheme-relative references. This inconsistency can lead to host confusion, where an...

fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization

A flaw was found in fast-uri, a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not fully validate the IPv6 grammar, allowing invalid trailing text in an authority to be silently discarded. This can lead to a malformed, attacker-controlled host being normalized into a...

fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding

A flaw was found in fast-uri, a URI parser for Node.js. The component incorrectly decodes percent escapes in a hostname twice during URI parsing and authority recomposition. This double decoding can allow a remote attacker to manipulate a URI to point to a different network destination, such as a...

EUVD-2026-90360

basic-ftp: Quadratic-time CPU denial of service in Client.list Unix directory-listing parser RELINE backtracking...

thrift: thrift: Denial of Service via prototype pollution in Node.js bindings

A flaw was found in Apache Thrift's Node.js bindings. Due to improper input validation and prototype pollution—a condition where base JavaScript object properties can be modified—the application fails to safely process incoming data. A remote attacker can exploit this vulnerability by sending...

thrift: thrift: Denial of Service via TJSONProtocol in Node.js bindings

A flaw was found in Apache Thrift. A remote attacker can exploit this vulnerability by submitting specially crafted messages to applications using the Node.js bindings with TJSONProtocol. Successful exploitation can trigger an infinite loop or cause prototype pollution unintended modification of...

thrift: thrift: Denial of Service via excessive memory allocation in WebSocket transport

A flaw was found in Apache Thrift. A remote attacker can cause a Denial of Service DoS against the Node.js and D WebSocket server transports by sending a frame specifying an excessively large payload length. Because the server immediately allocates the declared amount of memory without verifying...

RLSA-2026:74085 Important: nodejs:24 security, bug fix, and enhancement update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: undici: undici: Authentication bypass via cross-origin cache poisoning due to missing origin isolation CVE-2026-85152 undici: undici: TLS...

CVE-2026-103921: Improper Certificate Validation

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loade...

PT-2026-104010

Name of the Vulnerable Software and Affected Versions stream-json versions prior to 3.6.0 Description The JSONC parser at stream-json/jsonc/parser.js and verifier at stream-json/jsonc/verifier.js restart comment-terminator scanning from the opening slash when a block or line comment spans an inpu...

AlmaLinux 9.2 [TuxCare] Security Update: nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1769775296)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1769775296 advisory. - A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the vm...

AlmaLinux 9.2 [TuxCare] Security Update: nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc (ALMALINUX9.2:CLSA-2025:1757609292)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1757609292 advisory. - A vulnerability in Node.js has been identified, allowing for a Denial of Service DoS attack through resource exhaustion when using the fetc...

AlmaLinux 9.6 [TuxCare] Security Update: nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1783676351)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1783676351 advisory. - A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth...