GHSA-F8GF-W286-FMQ2 vm2: `allowAsync: false` can be bypassed through Promise thenable assimilation in VM and NodeVM

Summary When allowAsync is set to false, vm2 is expected to reject attempts to run asynchronous code. Direct use of Promise.prototype.then is blocked, but Promise static methods still assimilate attacker-controlled thenables. Promise.resolvethenable, Promise.allthenable, Promise.racethenable,...

EUVD-2026-81608

vm2: allowAsync: false can be bypassed through Promise thenable assimilation in VM and NodeVM...

GHSA-R4FX-V8HH-22MV vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)

Vulnerability Summary vm2's VM timeout option is documented and relied upon as the mechanism that bounds how long sandboxed code may execute. In the current implementation, the timeout only wraps the single synchronous call to VMrun via doWithTimeout → this.runScriptscript in lib/vm.js. It does...

CVE-2026-93156 crypto: rk3288 - fail ahash requests on HASH idle timeout

In the Linux kernel, the following vulnerability has been resolved: crypto: rk3288 - fail ahash requests on HASH idle timeout rkhashrun waits for RKCRYPTOHASHSTS to become idle after the final DMA transfer, but ignores the poll result. If the hash engine never becomes idle, the driver still reads...

CVE-2026-92942

A flaw was found in vm2. Sandboxed code can bypass the configured timeout mechanism by using the FinalizationRegistry feature. This allows an attacker to execute a busy loop in a cleanup callback, which is invoked outside the timeout accounting. Consequently, this can block the host event loop...

CVE-2026-92959

vm2 before 3.11.8 does not fully enforce the allowAsync: false option in VM and NodeVM. While localPromise.prototype.then is replaced with a handler that throws 'Async not available', the sandbox's Promise static methods Promise.resolve, Promise.all, Promise.race, Promise.any, and...

CVE-2026-92942

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-92959 vm2 before 3.11.8 allowAsync Bypass via Promise Thenable

vm2 before 3.11.8 does not fully enforce the allowAsync: false option in VM and NodeVM. While localPromise.prototype.then is replaced with a handler that throws 'Async not available', the sandbox's Promise static methods Promise.resolve, Promise.all, Promise.race, Promise.any, and...

CVE-2026-92959

CVE-2026-92959 affects vm2 (a Node.js sandboxing library) versions prior to 3.11.8 . The vulnerability lies in the incomplete enforcement of the allowAsync: false option in VM and NodeVM. Although localPromise.prototype.then is patched to throw 'Async not available', the sandbox's Promise static ...

CVE-2026-92959 vm2 before 3.11.8 allowAsync Bypass via Promise Thenable

vm2 before 3.11.8 does not fully enforce the allowAsync: false option in VM and NodeVM. While localPromise.prototype.then is replaced with a handler that throws 'Async not available', the sandbox's Promise static methods Promise.resolve, Promise.all, Promise.race, Promise.any, and...

CVE-2026-92959 vm2 before 3.11.8 allowAsync Bypass via Promise Thenable

vm2 before 3.11.8 does not fully enforce the allowAsync: false option in VM and NodeVM. While localPromise.prototype.then is replaced with a handler that throws 'Async not available', the sandbox's Promise static methods Promise.resolve, Promise.all, Promise.race, Promise.any, and...

CVE-2026-92942 vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-92942

vm2 before 3.11.7 (versions ≤ 3.11.6) contains a timeout bypass that allows sandboxed code to trigger denial of service. The VM({ timeout }) option only wraps the synchronous VM#run() call, while FinalizationRegistry and WeakRef are exposed to sandboxed code unmodified. An attacker can register a...

CVE-2026-92942 vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-92942 vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-88878

A flaw was found in Traefik, an HTTP reverse proxy and load balancer. When HTTP/3 is enabled, an unauthenticated remote client can exploit a timeout bypass vulnerability by trickling request body bytes. This allows the client to hold a request open indefinitely, exhausting backend connection pool...

CVE-2026-88878

Traefik (HTTP reverse proxy and load balancer) versions v2.8.2 through v2.11.55 and v3.0.0 through v3.7.11 are affected by an HTTP/3 timeout bypass. The respondingTimeouts settings (notably readTimeout, default 60s) are not applied to the HTTP/3 request path because readTimeout is enforced as a d...

CVE-2026-88878 Traefik v2.8.2 through v3.6 HTTP/3 Timeout Bypass

Traefik is an HTTP reverse proxy and load balancer. In versions = v2.8.2 through = v3.0.0 through .transport.respondingTimeouts settings — notably readTimeout, which is enabled by default at 60s — are not applied to the HTTP/3 request path. readTimeout is enforced as a deadline on the underlying...

CVE-2026-88878 Traefik v2.8.2 through v3.6 HTTP/3 Timeout Bypass

Traefik is an HTTP reverse proxy and load balancer. In versions = v2.8.2 through = v3.0.0 through .transport.respondingTimeouts settings — notably readTimeout, which is enabled by default at 60s — are not applied to the HTTP/3 request path. readTimeout is enforced as a deadline on the underlying...

AZL-96644 CVE-2026-56853 affecting package golang 1.25.12-1

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...