Issues

• Stale sandbox routing record after ungraceful node loss causes persistent 502 until TTL (max_length_in_hours)

  e2b-dev/runtime#3695 · Filter by author AdaAibaby opened on Oct 19, 2026

• Template layer-cache artifacts leak: build writes one dir per layer, only the final build is in env_builds (GC missing)

  e2b-dev/runtime#3694 · Filter by author AdaAibaby opened on Oct 19, 2026

• Embed: make per-node sandbox limits configurable without LaunchDarkly (max-starting-instances-per-node, max-sandboxes-per-node)

  e2b-dev/runtime#3693 · Filter by author DarkPhoenix2704 opened on Oct 19, 2026

• proxy: ErrorHandler returns "Failed to route request to sandbox" for both routing (500) and upstream (502) failures

  e2b-dev/runtime#3691 · Filter by author AdaAibaby opened on Oct 19, 2026

• Create right after kill fails with 500 Failed to place sandbox while the killed sandbox still holds its hugepages

  e2b-dev/runtime#3689 · Filter by author eren23 opened on Oct 18, 2026
  

• api: a joined sandbox-start waiter inherits the leader request client cancellation

  e2b-dev/runtime#3686 · Filter by author AdaAibaby opened on Oct 16, 2026

• api/shared: context.Canceled classified as client-closed (499) inconsistently and misattributes server-initiated cancellation

  e2b-dev/runtime#3685 · Filter by author AdaAibaby opened on Oct 16, 2026

• api: client cancellation during sandbox placement/reserve logged at ERROR and counted as create failure

  e2b-dev/runtime#3683 · Filter by author AdaAibaby opened on Oct 16, 2026

• Proposal: authenticated internal access-token rotation for standalone envd

  e2b-dev/runtime#3679 · Filter by author cwj2001 opened on Oct 13, 2026

• High concurrency: failed to stop FC: fc process still exists after SIGKILL; cgroup.kill request timed out

  e2b-dev/runtime#3675 · Filter by author AdaAibaby opened on Oct 9, 2026
  1

• NBD device-release race + partscan noise: isDeviceFree predicate too weak, causes dmesg I/O errors

  e2b-dev/runtime#3652 · Filter by author AdaAibaby opened on Sep 21, 2026

• The Memory Oversubscription Gap: AgentEnv's Shared Page Cache Advantage vs E2B's Isolation-First Architecture

  e2b-dev/runtime#3646 · Filter by author feijianqiang-1988 opened on Sep 17, 2026
  1

• Cancelled/timed-out sandbox create leaves an unregistered orphan instance on the node

  e2b-dev/runtime#3637 · Filter by author ningZhang-cs opened on Sep 14, 2026

• DELETE on a paused sandbox can be undone by an in-flight resume: sandbox ends up running after DELETE returns 204

  e2b-dev/runtime#3636 · Filter by author ningZhang-cs opened on Sep 13, 2026
  3

• Clarify denyOut semantics for sandbox-local MMDS (169.254.169.254)

  e2b-dev/runtime#3625 · Filter by author cristianducu opened on Sep 7, 2026
  1

• envd: distinguish expected stdin lifecycle errors from CodeInternal

  e2b-dev/runtime#3622 · Filter by author wangxuw opened on Sep 7, 2026

• Restore <pkg>-v<ver> git tags for per-component releases

  e2b-dev/runtime#3620 · Filter by author wdd0278 opened on Sep 6, 2026

• [Bug]: flock() on a mounted volume hangs forever (mount is missing nolock)

  e2b-dev/runtime#3619 · Filter by author lucascanna opened on Sep 4, 2026

• Orchestrator GRPC_PORT takes 20-30 min to bind on startup when /run/netns has many residual ns-* from a previously drained node

  e2b-dev/runtime#3615 · Filter by author AdaAibaby opened on Sep 3, 2026

• Future plans for the public Firecracker fork / self-host source builds?

  e2b-dev/runtime#3612 · Filter by author AlbumenJ opened on Aug 31, 2026
  1

• bug(envd): HTTP listener bound after blocking init chain — connect-refused during startup race

  e2b-dev/runtime#3610 · Filter by author AdaAibaby opened on Aug 31, 2026

• bug(envd): rare startup race — MMDS poller keeps running but HTTP listener never binds (sandbox refuses :49983 instantly, orchestrator can't tell)

  e2b-dev/runtime#3609 · Filter by author dushulin opened on Aug 28, 2026
  1

• obs(api): Redis storage layer is missing key metrics across lock, transition, scan, and data-quality paths

  e2b-dev/runtime#3607 · Filter by author AdaAibaby opened on Aug 24, 2026

• obs(api): no metrics on global expiration ZSET size or evictor sweep latency

  e2b-dev/runtime#3605 · Filter by author AdaAibaby opened on Aug 24, 2026

• perf(api): cjson.decode in startTransitionScript Lua script blocks Redis event loop under concurrent evictions

  e2b-dev/runtime#3602 · Filter by author AdaAibaby opened on Aug 24, 2026