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Low 35 Bitcoin

feat: Loading a Descriptor Sets Wallet Attributes (#802)

KX86340f31 View source ↗
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What the developer wrote

Authored by Odudex

93/100 · Strong
feat: Loading a Descriptor Sets Wallet Attributes (#802)

*feat: loading a descriptor sets wallet attributes

*feat: remove the feature to load xpubs as they were descriptors, with or without assumptions.
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
The short version

What changed, and why it matters

This commit changes how Krux handles wallet descriptors. Instead of requiring users to manually set wallet type (single-sig, multisig, miniscript), network (mainnet/testnet), and address format, Krux now reads these directly from the descriptor. It also removes the old feature that tried to guess these settings from raw xpubs, which could make unsafe assumptions. When a loaded descriptor doesn't match the currently configured wallet, Krux now shows a clear warning and asks the user whether to switch settings automatically. Overall this is a security-hardening and usability improvement, not an introduced vulnerability.

Recommended action

No urgent action required. Reviewers and users should verify that the new mismatch prompt is clear and that the removed xpub-as-descriptor fallback is acceptable for their workflows. Consider whether any downstream tools relied on loading bare xpubs.

Security signals we found

01

Removes unsafe xpub-to-descriptor assumption logic that could infer wrong BIP purpose/account/network

02

Adds explicit user prompt before changing wallet policy, script type, or network

03

Introduces PolicyMismatchWarning to surface mismatches instead of failing silently or with generic ValueError

04

Validates descriptor-derived network via xpub version bytes

05

Adds tests covering policy, network, and script-type mismatch accept/decline paths

Risk score

Why this scored 35/100

Our methodology →
Potential impact 8/30
Exploitability 5/25
Stealth signal 4/15
Affected reach 7/15
Confidence 7/10
Evidence quality 4/5
Human-validated context

Community notes

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