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Low 33 Bitcoin

cln-bip353: add plugin that fetches payment instructions from human readable addresses

Public commit record

What the developer wrote

Authored by daywalker90

65/100 · Adequate
cln-bip353: add plugin that fetches payment instructions from human readable addresses

Changelog-Add: new plugin cln-bip353 that can fetch BIP-353 payment instructions from human readable addresses
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
The short version

What changed, and why it matters

This commit adds a brand-new plugin called cln-bip353 to Core Lightning. The plugin lets users look up Bitcoin/Lightning payment instructions from human-readable addresses like send.some@satsto.me using DNS (BIP-353). It also exposes a new RPC command and gRPC method named fetchbip353. Because this is a large feature addition touching RPC, gRPC, generated Python code, documentation, and tests, it increases the attack surface of the node: any bugs in DNS resolution, DNSSEC proof handling, or parsing of returned payment instructions could affect the node. However, the commit itself is a feature addition, not a documented security fix, and no specific vulnerability is visible in the diff.

Recommended action

Treat this as a routine feature addition with increased external-dependency and network-exposure risk. Review the full plugin source (plugins/bip353-plugin/src/main.rs and config.rs) for secure DNSSEC validation, strict input validation on the address parameter, safe parsing of returned offers/onchain addresses, and least-privilege plugin permissions. Monitor the git dependency bitcoin-payment-instructions for updates and upstream security advisories. Run the new tests and consider fuzzing the address input and DNSSEC proof parsing paths.

Security signals we found

01

New plugin performs external network DNS/DoH lookups for user-supplied human-readable addresses

02

Adds new RPC/gRPC entry point fetchbip353 that accepts an arbitrary address string

03

Uses a git-dependency (bitcoin-payment-instructions) rather than a released crate

04

Significantly expands dependency tree with reqwest, tokio-socks, dnssec-prover, wasm-bindgen, web-sys, etc.

05

Plugin parses returned payment instructions (BOLT12 offers, onchain addresses) and exposes them via RPC

06

No vendor security disclosure or CVE reference present in commit or supplied references

Risk score

Why this scored 33/100

Our methodology →
Potential impact 5/30
Exploitability 5/25
Stealth signal 5/15
Affected reach 10/15
Confidence 5/10
Evidence quality 3/5
Human-validated context

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