paritytech/smoldot

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Alternative client for Substrate-based chains.

Stars: 328
Forks: 81
Open beginner issues: 0
Indexed issues: 149
Avg merge: 3d 16h
Merged PRs (30d): 13

Dominant language: Rust
License: GPL-3.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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149 open issues indexed

statement-store: repeated subscriptions loose old statements Open

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

paritytech/smoldot#3348 · Opened Aug 17, 2026
light-base: statement notifications backpressure the whole network task Open

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

paritytech/smoldot#3323 · Opened Aug 4, 2026
statement-store: Implement RPCv2 specification Open

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

paritytech/smoldot#3319 · 1 comment · Opened Jul 31, 2026
Expose GRANDPA finality justifications over the JSON-RPC interface Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

paritytech/smoldot#3288 · Opened Jun 19, 2026
Internal metrics / introspection API Open

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

paritytech/smoldot#3285 · 3 comments · Opened Jun 10, 2026
network: filter out invalid/unusable peer endpoints Open

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

paritytech/smoldot#3283 · Opened Jun 9, 2026
verify_compact_trie_proof: avoid per-iteration partial_key allocation Open

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

paritytech/smoldot#3275 · Opened May 28, 2026
RUSTSEC-2025-0161: libsecp256k1 is unmaintained Open

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

paritytech/smoldot#3272 · Opened May 27, 2026
smoldot long-session stability Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

paritytech/smoldot#3255 · 2 comments · 2 reactions · Opened May 13, 2026
RUSTSEC-2026-0114: Panic when allocating a table exceeding the size of the host's address space Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

paritytech/smoldot#3241 · Opened May 1, 2026
Provide optimistic way to launch Smoldot Open

paritytech/smoldot#3237 · 1 comment · 1 reaction · 1 assignee · Opened Apr 29, 2026
chainHead_unstable_finalizedDatabase returns incomplete DB when runtime not yet cached Open

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

paritytech/smoldot#3231 · 1 comment · Opened Apr 27, 2026
refactor(sync-service): convert start_parachain from blocking linear function to reactive state machine Open

paritytech/smoldot#3222 · 2 comments · 1 assignee · Opened Apr 22, 2026
perf(sync-service): overlap WASM compilation with Aura proof downloads Open

paritytech/smoldot#3220 · 2 comments · 1 assignee · Opened Apr 22, 2026
perf(sync-service): parallelize Aura call proofs during parachain bootstrap Open

paritytech/smoldot#3219 · 3 comments · 1 assignee · Opened Apr 22, 2026
Expose sync progress via an onSyncProgress callback Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

paritytech/smoldot#3206 · 5 comments · Opened Apr 17, 2026
Parachain warm-start: reuse verified runtime from saved databaseContent Open

paritytech/smoldot#3204 · 1 comment · 1 assignee · Opened Apr 17, 2026
Warp sync downloads runtime twice on every cold start Open

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

paritytech/smoldot#3199 · Opened Apr 16, 2026
RUSTSEC-2025-0161: libsecp256k1 is unmaintained Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

paritytech/smoldot#3189 · Opened Apr 15, 2026
RUSTSEC-2026-0097: Rand is unsound with a custom logger using `rand::rng()` Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

paritytech/smoldot#3186 · Opened Apr 12, 2026
RUSTSEC-2026-0085: Panic when lifting `flags` component value Open

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

paritytech/smoldot#3177 · Opened Apr 10, 2026
RUSTSEC-2026-0087: Wasmtime segfault or unused out-of-sandbox load with `f64x2.splat` operator on Cranelift x86-64 Open

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

paritytech/smoldot#3178 · Opened Apr 10, 2026
RUSTSEC-2026-0091: Out-of-bounds write or crash when transcoding component model strings Open

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

paritytech/smoldot#3176 · Opened Apr 10, 2026
RUSTSEC-2026-0094: Improperly masked return value from `table.grow` with Winch compiler backend Open

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

paritytech/smoldot#3174 · Opened Apr 10, 2026
RUSTSEC-2026-0086: Host data leakage with 64-bit tables and Winch Open

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

paritytech/smoldot#3175 · Opened Apr 10, 2026
RUSTSEC-2026-0088: Data leakage between pooling allocator instances Open

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

paritytech/smoldot#3172 · Opened Apr 10, 2026
RUSTSEC-2026-0093: Heap OOB read in component model UTF-16 to latin1+utf16 string transcoding Open

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

paritytech/smoldot#3173 · Opened Apr 10, 2026
RUSTSEC-2026-0089: Host panic when Winch compiler executes `table.fill` Open

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

paritytech/smoldot#3170 · Opened Apr 10, 2026
RUSTSEC-2026-0096: Miscompiled guest heap access enables sandbox escape on aarch64 Cranelift Open

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

paritytech/smoldot#3171 · Opened Apr 10, 2026
RUSTSEC-2026-0092: Panic when transcoding misaligned component model UTF-16 strings Open

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

paritytech/smoldot#3169 · Opened Apr 10, 2026
RUSTSEC-2026-0095: Wasmtime with Winch compiler backend may allow a sandbox-escaping memory access Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

paritytech/smoldot#3168 · Opened Apr 10, 2026
Raw Paseo chain_getFinalizedHead can panic in all.rs:851 Open

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

paritytech/smoldot#3159 · 1 comment · Opened Apr 5, 2026
Late warp-sync responses can panic after #3155 transition to all-forks Open

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

paritytech/smoldot#3157 · Opened Apr 4, 2026
Reduce browser boot time: ~7-8s warm restart to <2s for dotNS resolution Open

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

paritytech/smoldot#3153 · 6 comments · Opened Apr 1, 2026
Bitswap protocol support & RPC endpoints Open

paritytech/smoldot#3140 · 1 assignee · Opened Mar 17, 2026
RUSTSEC-2026-0006: Wasmtime segfault or unused out-of-sandbox load with `f64.copysign` operator on x86-64 Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

paritytech/smoldot#3137 · Opened Mar 17, 2026
RUSTSEC-2026-0021: Panic adding excessive fields to a `wasi:http/types.fields` instance Open

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

paritytech/smoldot#3138 · Opened Mar 17, 2026
RUSTSEC-2026-0012: Unsoundness in opt-in ARMv8 assembly backend for `keccak` Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

paritytech/smoldot#3139 · Opened Mar 17, 2026
RUSTSEC-2026-0007: Integer overflow in `BytesMut::reserve` Open

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

paritytech/smoldot#3135 · Opened Mar 17, 2026
RUSTSEC-2026-0020: Guest-controlled resource exhaustion in WASI implementations Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

paritytech/smoldot#3136 · Opened Mar 17, 2026
RUSTSEC-2024-0438: Wasmtime doesn't fully sandbox all the Windows device filenames Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

paritytech/smoldot#3122 · Opened May 3, 2025
RUSTSEC-2023-0090: Guest-controlled out-of-bounds read/write on x86\_64 Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

paritytech/smoldot#3121 · Opened May 3, 2025
RUSTSEC-2023-0093: Miscompilation of `i8x16.select` with the same inputs on x86\_64 Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

paritytech/smoldot#3119 · Opened May 3, 2025
RUSTSEC-2023-0092: Undefined Behavior in Rust runtime functions Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

paritytech/smoldot#3120 · Opened May 3, 2025
RUSTSEC-2023-0091: Miscompilation of wasm `i64x2.shr_s` instruction with constant input on x86\_64 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

paritytech/smoldot#3118 · Opened May 3, 2025
RUSTSEC-2025-0014: humantime is unmaintained Open

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

paritytech/smoldot#3117 · Opened Mar 12, 2025
RUSTSEC-2024-0436: paste - no longer maintained Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

paritytech/smoldot#3116 · Opened Mar 8, 2025
RUSTSEC-2024-0384: `instant` is unmaintained Open

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

paritytech/smoldot#3115 · Opened Nov 11, 2024
RUSTSEC-2024-0375: `atty` is unmaintained Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

paritytech/smoldot#3114 · Opened Sep 27, 2024
RUSTSEC-2024-0344: Timing variability in `curve25519-dalek`'s `Scalar29::sub`/`Scalar52::sub` Open

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

paritytech/smoldot#3113 · Opened Jun 21, 2024

paritytech/smoldot

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