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Informational 24 Monero

Cw 1539 lightning enhancements (#3400)

Public commit record

What the developer wrote

Authored by Konstantin Ullrich

86/100 · Strong
Cw 1539 lightning enhancements (#3400)

* feat: add Lightning transaction URL support in transaction details view model

* fix: update currency selection logic in WalletAddressListViewModel and ReceivePage

* feat: integrate computed transaction amount and fee getters in TransactionDetailsViewModel, refactor CopyWrapper logic in TransactionDetailsModal

* refactor: apply lint rules

* refactor: apply lint rules and improve LNURL handling with new methods for withdrawal requests and error checks

* auto-reformat

* fix: receive_page regression

* fix: Withdraw lightning to other btc wallet gives LN address

* chore: update .lock files [skip ci]

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Co-authored-by: Robert Malikowski <malikowskirobert@gmail.com>
Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification✓ Links an issue, advisory, or supporting reference
The short version

What changed, and why it matters

This is a routine feature and bug-fix update for Cake Wallet's Lightning (Bitcoin layer-2) support. It adds the ability to handle LNURL withdrawal requests, fixes currency selection when receiving Bitcoin vs Lightning, and cleans up transaction-detail display. There is no clear security vulnerability in the diff, but the new network code that calls external Lightning services and parses invoices is a place where future bugs could matter, so it deserves normal review and testing.

Recommended action

Treat as a normal feature/bug-fix commit. Review the new LNURL withdrawal flow for input validation, URL scheme handling, and error paths; ensure callback query parameters are correctly encoded and that invoice amounts are validated against min/max before submission. Verify the receive-page currency fix does not regress other wallet types. No emergency action is indicated.

Security signals we found

01

New network request path added: LNURL.getWithdrawRequest and LNURL.commitWithdrawRequest fetch and decode JSON from user-supplied LNURL callbacks via ProxyWrapper().get().

02

LNURL decode/encode logic changed from single-quote to double-quote strings and minor style refactor; functional behavior appears unchanged.

03

Receive page now explicitly sets selectedCurrency to btcln for Lightning options and btc for standard Bitcoin options, fixing prior regression.

04

Transaction details modal now uses computed getters (transactionAmount, feeAmount, transactionCopyAmount) from amountParsingProxy instead of direct toStringWithSymbol().

05

pubspec.lock downgrades meta and test_api and lowers Dart SDK constraint; this is a dependency/versioning change, not a vulnerability fix.

Risk score

Why this scored 24/100

Our methodology →
Potential impact 3/30
Exploitability 4/25
Stealth signal 3/15
Affected reach 5/15
Confidence 6/10
Evidence quality 3/5
Human-validated context

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