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# Shamir Mnemonic Reconstruction Accepts Invalid Share Sets → Silent Wrong Secret (Loss of Funds)

Status: Open.

#78 In bitaps-com/pybtc;

· angus14 opened on Apr 17, 2026

Critical Shamir Secret Sharing issues: missing validation and threshold integrity flaws

Status: Open.

#77 In bitaps-com/pybtc;

· azamow708-eng opened on Apr 16, 2026

Vulnerability Report: Entropy Threshold Risks in SSS Implementation

Status: Open.

#76 In bitaps-com/pybtc;

· Nyx38 opened on Apr 12, 2026

Security Vulnerability: Implementation bias in __split_secret via rejection sampling (Entropy reduction)

Status: Open.

#74 In bitaps-com/pybtc;

· Pastorjetu opened on Mar 11, 2026

[Bug Bounty] Biased polynomial coefficient generation in Shamir SSS – Afeta diretamente o Challenge de 1 BTC

Status: Open.

#73 In bitaps-com/pybtc;

· danmobile2023 opened on Mar 9, 2026

Restore succeeds with fewer shares than configured threshold

Status: Open.

#72 In bitaps-com/pybtc;

· likme opened on Feb 26, 2026

Silent Fund Loss via Missing Parameter Validation in split_secret (pybtc) + Secondary Findings

Status: Open.

#70 In bitaps-com/pybtc;

· PeterKarinbit opened on Feb 11, 2026

Critical Interoperability Failure & Entropy Bias in jsbtcimplementation

Status: Open.

#68 In bitaps-com/pybtc;

· tw3nt1on3 opened on Jan 27, 2026

TWO Potencial BUG

Status: Open.

#67 In bitaps-com/pybtc;

· moetneos-maker opened on Jan 22, 2026

Design Flaw: Per-Byte Shamir Splitting of BIP-39 Mnemonics Causes Entropy Collapse and Non-Unique Reconstruction

Status: Open.

#65 In bitaps-com/pybtc;

· Petah0411 opened on Dec 13, 2025

*Title*: Exploring Shamir (3-of-5) with 2 Shares - ZeroNights X Bounty - *Body*: Hi @bitaps-com team, exploring PyBTC for the ZeroNights X bounty. Given 2/3 shares: - Share 1: session cigar grape merry useful churn fatal thought very any arm unaware - Share 2: clock fresh security field caution effort gorilla speed plastic common tomato echo Tested recover_secret, no critical flaws yet. Suggestions: sanitize logs, test edge cases, document partial-share handling. Goal: break the scheme (1 BTC prize). @ MSMcloud9bm *Labels (optional)*: bug bounty, security, enhancement

Status: Open.

#64 In bitaps-com/pybtc;

· BTRMMD opened on Dec 7, 2025

Coefficient-Correlation Weakness in pybtc-legacy Shamir Implementation

Status: Open.

#63 In bitaps-com/pybtc;

· bakaxbaka opened on Nov 30, 2025