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bdu:2026-14935

fkie_cve-2026-92940

vm2 versions 3.11.3 through 3.11.6 expose the host process's real https.globalAgent to sandboxed code when a NodeVM is explicitly configured to allow require('https'). The builtin loader wraps host modules in a read-only proxy, but method calls such as Agent.prototype.on() are forwarded to the underlying host object, so sandbox code can register a listener for the agent's 'free' event. When an unrelated host HTTPS request releases a pooled connection, the listener receives the live host request options and the host TLSSocket, allowing sandboxed code to read the host's Authorization header and private destination host/port, attach a data listener to the released socket and read subsequent host response bodies in plaintext, and issue attacker-chosen authenticated requests using the stolen credentials. The issue is fixed in 3.11.7.

Withdrawn: GHSA-5843-9mh5-hhgw — Duplicate Advisory: vm2 exposes host HTTPS credentials and TLS traffic through globalAgent

Withdrawn by the publisher.

Affected: npm: vm2

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-h85j-hv3c-qfgq. This link is maintained to preserve external references.

## Original Description vm2 versions 3.11.3 through 3.11.6 expose the host process's real https.globalAgent to sandboxed code when a NodeVM is explicitly configured to allow require('https'). The builtin loader wraps host modules in a read-only proxy, but method calls such as Agent.prototype.on() are forwarded to the underlying host object, so sandbox code can register a listener for the agent's 'free' event. When an unrelated host HTTPS request releases a pooled connection, the listener receives the live host request options and the host TLSSocket, allowing sandboxed code to read the host's Authorization header and private destination host/port, attach a data listener to the released socket and read subsequent host response bodies in plaintext, and issue attacker-chosen authenticated requests using the stolen credentials. The issue is fixed in 3.11.7.

RHSA-2026:76788 — Red Hat Security Advisory: Red Hat Developer Hub 1.10.5 Plugin Catalog GA plugins release.

undici: undici: Information disclosure and Denial of Service via malformed Cache-Control directives undici: undici: Denial of Service via unrequested WebSocket subprotocol vm2: vm2: Denial of Service due to memory allocation limit bypass vm2: vm2: Missing Error.cause Sanitization Enables VM2 Sandbox Escape to RCE vm2: vm2: Sandbox Breakout Using Dangerous Host Proto Mutators urllib: urllib: Credential leakage via cross-origin redirects fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding fast-uri: fast-uri: Host confusion via skipped IDN canonicalization fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects multer: Multer: Denial of Service via file descriptor leak on aborted uploads multer: Multer: Denial of Service via crafted multipart field names jsonata: JSONata: Arbitrary Code Execution via crafted JSONata expressions jsonata: JSONata: Arbitrary Code Execution via crafted JSONata expressions jsonata: JSONata: Arbitrary Code Execution via crafted JSONata expressions multer: Multer: Denial of Service via oversized array index in field names qs: qs: Denial of Service via improper validation in stringify function fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization js-yaml: js-yaml: Denial of Service vulnerability in YAML parsing fast-uri: fast-uri: Host confusion via unbalanced URI brackets can bypass sec…