e2b-dev/runtime

The runtime behind every E2B stack: Cloud, Enterprise, and your own machine.

Stars: 1.6k
Forks: 438
Open beginner issues: 0
Indexed issues: 107

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

107 open issues indexed

fix(envd): port scanner ignores net.Connections error and drops active forwarded ports Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

e2b-dev/runtime#3421 · Opened Jul 27, 2026
api: ReadTimeout: 10s kills body reads under high concurrency, conflicting with requestTimeout: 70s Open

Difficulty 1/5 Under an hour Newbie friendliness 85/100

e2b-dev/runtime#3415 · Opened Jul 27, 2026
api: client-disconnect body-read failures are misclassified as auth errors (400 WARN noise) Open

Difficulty 4/5 3-5 days Newbie friendliness 70/100

e2b-dev/runtime#3413 · Opened Jul 27, 2026
fix(placement,fc): memory-unaware scheduling risks host OOM; balloon DeflateOnOom should be true Open

Difficulty 4/5 3-5 days Newbie friendliness 50/100

e2b-dev/runtime#3379 · Opened Jul 24, 2026
envd: GET /files returns an empty body for procfs/sysfs files unless gzip is negotiated Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

e2b-dev/runtime#3363 · Opened Jul 23, 2026
fix(api): background goroutines (events, builds) not awaited at graceful shutdown — events may be dropped Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

e2b-dev/runtime#3357 · Opened Jul 23, 2026
perf(orchestrator): increase NBD dispatch buffer by 28 bytes to coalesce header + max payload in one read Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

e2b-dev/runtime#3355 · Opened Jul 23, 2026
orchestrator: hardcoded customer template IDs bypass configurable ready-wait (HACK in GetDefaultReadyCommand) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

e2b-dev/runtime#3349 · Opened Jul 23, 2026
orchestrator: NBD dispatch response-write errors (EPIPE) logged at ERROR on normal VM exit Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

e2b-dev/runtime#3348 · 1 comment · Opened Jul 23, 2026
orchestrator: NBD pool ReleaseDevice retry sleep ignores context cancellation Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

e2b-dev/runtime#3347 · 1 comment · Opened Jul 23, 2026
Self hosting on AWS - Nomad DNS resolution issue during make plan Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

e2b-dev/runtime#3315 · Opened Jul 20, 2026
orchestrator: nbd read flood when build object missing from store (no negative caching + missing build_id in error log) Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

e2b-dev/runtime#3294 · Opened Jul 16, 2026
envd: a stale process-stream subscriber can wedge stdout fan-out for all subscribers for ~15 minutes after sandbox resume Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

e2b-dev/runtime#3292 · 2 reactions · Opened Jul 15, 2026
orchestrator: FC metrics flusher goroutine may emit spurious Warn after Firecracker exit due to select race Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

e2b-dev/runtime#3275 · Opened Jul 11, 2026
orchestrator: NBD dispatch logs context.Canceled and closed-socket errors at ERROR level after normal VM exit Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

e2b-dev/runtime#3274 · Opened Jul 11, 2026
orchestrator: NBDProvider.Close() syncs device before disconnecting, causing spurious EIO on sandbox cleanup after VM crash Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

e2b-dev/runtime#3273 · Opened Jul 11, 2026
Feature: export template/sandbox rootfs as Docker image Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

e2b-dev/runtime#3272 · Opened Jul 11, 2026
fix(orchestrator): memfile.header not written in Local storage mode — templates break after cache eviction Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

e2b-dev/runtime#3248 · 2 comments · Opened Jul 10, 2026
Template deletion does not remove build artifacts from storage (GCS/S3) Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

e2b-dev/runtime#3239 · Opened Jul 9, 2026
Every template I build ends up unusable after a few minutes — memfile.header is missing on disk. Am I doing something wrong? Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

e2b-dev/runtime#3226 · 2 comments · Opened Jul 8, 2026
dashboard-api: bootstrapUserWithIdentity creates new empty account for pre-Ory users on first login Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

e2b-dev/runtime#3223 · Opened Jul 8, 2026
dashboard-api: Ory admin API calls fail silently in Hydra-only or CDN-proxied deployments Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

e2b-dev/runtime#3222 · Opened Jul 8, 2026
feat: template build retention policy — auto-clean stale CI builds Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

e2b-dev/runtime#3197 · Opened Jul 3, 2026
feat(volumes): pluggable distributed storage backend for high-performance cross-sandbox file sharing Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

e2b-dev/runtime#3195 · Opened Jul 3, 2026
Revisit structured errorCode for sandbox lifecycle API errors Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

e2b-dev/runtime#3180 · Opened Jul 2, 2026
Scope GetLastSnapshot query by teamID to prevent cross-team data access Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

e2b-dev/runtime#3178 · Opened Jul 2, 2026
fix(orchestrator): generic 'build was cancelled' error hides actual failure cause Open

Difficulty 3/5 1-2 days Newbie friendliness 75/100

e2b-dev/runtime#3160 · Opened Jul 1, 2026
Sandbox creation fails with generic error when template files are in archived storage class Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

e2b-dev/runtime#3137 · Opened Jun 29, 2026
fix(orchestrator): terminate sandbox when UFFD handler fails Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

e2b-dev/runtime#3131 · Opened Jun 29, 2026
Title: feat: add bin-packing scheduling strategy for sandbox placement Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

e2b-dev/runtime#3104 · Opened Jun 26, 2026
Title: feat: allow opt-in async NFS mount options for volume mounts Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

e2b-dev/runtime#3103 · Opened Jun 26, 2026
envd: tag-based process lookup aborts early due to inverted Range return values Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

e2b-dev/runtime#3098 · Opened Jun 26, 2026
RFC: move non-80/443 TCP CIDR egress enforcement into the per-sandbox netns firewall (stop steering it) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

e2b-dev/runtime#3088 · Opened Jun 25, 2026
RFC: optional eBPF (bpf_sk_assign) egress steering as an alternative to per-slot iptables REDIRECT Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

e2b-dev/runtime#3085 · Opened Jun 25, 2026
Template builds are unbounded: `TemplateCreate` spawns one goroutine (and one FC VM + rootfs assembly) per request with no concurrency limit Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

e2b-dev/runtime#3070 · 1 comment · Opened Jun 23, 2026
Proposal: Add Volcengine self-hosting support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

e2b-dev/runtime#3054 · 1 comment · Opened Jun 22, 2026
Clarify client-proxy health port defaults across binary config and Nomad IaC Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

e2b-dev/runtime#3052 · 1 comment · Opened Jun 21, 2026
Proposal: Add Alibaba Cloud self-hosting support Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

e2b-dev/runtime#3035 · 5 comments · 10 reactions · Opened Jun 18, 2026
Optimize Firecracker sandbox startup by reducing mount namespace copies in the orchestrator Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

e2b-dev/runtime#3012 · 2 comments · Opened Jun 15, 2026
[Feature] Bound template mmap cache size and add memory-pressure eviction to prevent unbounded RSS growth Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

e2b-dev/runtime#2957 · 1 comment · Opened Jun 9, 2026
Repeated NBD I/O errors and zombie nbd devices after NBD connection broken (EPIPE -32) Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

e2b-dev/runtime#2826 · 1 comment · Opened May 26, 2026
Orchestrator: Many orphaned Firecracker instances and leftover network/iptables rules causing host resource leakage Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

e2b-dev/runtime#2813 · 3 comments · Opened May 25, 2026
client-proxy 502 errors & orchestration-api snapshot not found: poor observability and ambiguous error messages Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

e2b-dev/runtime#2730 · 2 comments · Opened May 19, 2026
failed to reset memory.peak Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

e2b-dev/runtime#2710 · 3 comments · Opened May 18, 2026
Timeline for ublk integration Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

e2b-dev/runtime#2709 · 3 comments · Opened May 18, 2026
envd: streaming RPCs starve behind reverse proxies that buffer responses Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

e2b-dev/runtime#2707 · 1 comment · Opened May 18, 2026
Document minimum IAM permissions required for self-hosting and BYOC Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

e2b-dev/runtime#2671 · 1 comment · Opened May 15, 2026
Support per-team dedicated OSS buckets Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

e2b-dev/runtime#2658 · 1 comment · Opened May 14, 2026
Clarify EndEvent.error semantics for normal non-zero exits in envd's process handler Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

e2b-dev/runtime#2657 · 1 comment · Opened May 14, 2026
RFC: skip unchanged checkpoints via in-guest eBPF inspector Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

e2b-dev/runtime#2580 · 1 comment · Opened May 6, 2026

A short digest of beginner-friendly GitHub issues.