GHSA-M5Q2-4FM3-VFQP vm2 has a sandbox escape via unblocked cross-realm Symbol.for keys + missing bridge write-trap symbol checks

Summary vm2 3.11.2 Symbol.for override in setup-sandbox.js only intercepts 2 of 9 dangerous Node.js cross-realm symbols. Combined with the bridge's set/defineProperty/deleteProperty traps having no isDangerousCrossRealmSymbol key check, sandbox code can obtain real cross-realm symbols, write them...

vm2 setup-sandbox.js violates Defense Invariant #11 in stack-trace formatter

Summary defaultSandboxPrepareStackTrace in lib/setup-sandbox.js lines 605, 607 appends to a fresh sandbox-realm lines = via lineslines.length = value. This is the exact invariant-violating pattern that GHSA-9qj6-qjgg-37qq commit ca195f0, 2026-05-01 just patched in neutralizeArraySpeciesBatch and...