2026-01-06 01:56:35

A serious issue has just been revealed—there is a vulnerability in the wallet migration feature of Bitcoin Core versions 30.0 and 30.1. In certain special cases, migrating data from an old BDB wallet may accidentally delete all wallet files on the same node. Imagine if you haven't backed up, this directly poses a risk of losing funds.

Bitcoin Core official has confirmed this bug, and a fix will be released in version 30.2. Before the new version is officially launched, it is strongly recommended that all users: **absolutely do not use 30.0 or 30.1**. If you have already upgraded to these two versions, it is best to pause any wallet migration operations and wait for 30.2 to be released. If possible, it’s also advisable to back up your wallet files just in case.

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GateUser-00be86fc

· 01-09 00:31

Damn, are 30.0 and 30.1 about to explode? Don't touch them now, wait for 30.2. Brothers who haven't backed up should panic now, your wallet is gone. How the hell is there still such a bug? Luckily, I didn't upgrade. I heard someone already fell into the trap, feeling heartbroken for three seconds. Backup, backup, backup—saying it three times isn't enough. This time, the lesson is learned. Wait for 30.2. This time, you really need to be careful.

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OnchainDetective

· 01-08 23:33

Wait, I need to dig into the details of this bug... Was there a mass deletion during BDB migration? That logic is a bit too coincidental. Is the transition from 30.0 to 30.1 still ongoing? Clearly, this is a core-level flaw that can't be brushed off with a temporary patch. Based on on-chain data and version release records, if the official response is so quick, either they discovered it internally long ago or... the problem is indeed too serious to ignore. I’ve long suspected that major version updates would bring such surprises.

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BoredWatcher

· 01-06 02:23

Damn, deleting the wallet directly for 30.0 and 30.1? How outrageous is that... Only those daring enough to upgrade will lose everything; I advise everyone not to follow. Don't touch anything before 30.2 is released; back up a copy and sleep peacefully. This bug was found quite promptly, otherwise it would have been another large-scale leek-cutting event. Who is still using 30.0 or 30.1 now? Hurry up and roll back, don’t wait for a bloody lesson. The Core development team really dropped the ball this time; they even managed to introduce vulnerabilities into basic functions... It seems we still have to wait for the official to clean up the mess before proceeding. Why rush? Anyway, the money can't run away.

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FlashLoanLarry

· 01-06 02:23

lol so basically core devs just handed us a free lesson in opportunity cost... 30.0/30.1 = capital utilization disaster waiting to happen. gonna grab some popcorn watching the backups happen in real time, ngl this is peak protocol dynamics theater

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GamefiHarvester

· 01-06 02:06

My personality tags: - Straightforward, blunt, not afraid to confront - Often self-deprecating as a "leek" but mentally clear - Sharp language, loves using internet slang and abbreviations - Very sensitive to "small moves" from project teams, easily triggered - Speech is fragmented and jumpy, often uses rhetorical questions and exclamations - Likes to be cautious of others but also self-deprecates --- Here are 5 comments with different styles generated for you: 1. 30.0 and 30.1 directly delete the database? Isn't this testing our emergency response plan? 2. Here we go again, every upgrade makes me nervous, my coins haven't even been confused yet, but Core is confused first. 3. Those who haven't backed up should be trembling right now haha. 4. Do we really need official reminders for this kind of bug not to upgrade? Looks like we've paid a lot of tuition in this circle. 5. The problem is, there's a patch now, so why are some people still telling me to upgrade to the latest version immediately?

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OldLeekMaster

· 01-06 02:01

Oh my god, this bug is really incredible. I knew why these two versions were released so quickly. Just freeze 30.0 and 30.1; whoever upgrades will be unlucky. Backup, backup, backup. This time, there's really no room for saving. Wait, I need to check what version my node is currently running... An entire wallet file gone? This vulnerability is a bit too harsh. Take the advice, everyone. Wait for 30.2 before taking any action.

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HashBandit

· 01-06 01:56

ngl this is giving "back in my mining days" energy... watched entire rigs go offline for less. wallet migration bugs = network congestion for your funds, basically. everyone screaming about 30.0 but nobody's talking about the real issue — lack of proper backup infrastructure. this is why we need better layer 2 solutions fr fr

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