# Security Alert - cpp-ethereum's account unlocking problem not yet fixed \[Now fixed\]

DevFeed: [Security Alert - cpp-ethereum's account unlocking problem not yet fixed \[Now fixed\]](<https://devfeed.tech/articles/security-alert-cpp-ethereum-s-account-unlocking-problem-not-yet-fixed-now-fixed-16761.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2016/06/03/security-alert-cpp-ethereums-account-unlocking-problem-not-yet-fixed>)

Author: Christian Reitwiessner

Published: 2016-06-03T18:05:58Z

Content type: news

Language: en

Sources: [Ethereum Foundation Blog](<https://devfeed.tech/sources/ethereum-foundation-blog.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [bug](<https://devfeed.tech/topics/bug.md>), [Ethereum](<https://devfeed.tech/topics/ethereum.md>)

Tags: [bug](<https://devfeed.tech/tags/bug.md>), [cpp](<https://devfeed.tech/tags/cpp.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [issue](<https://devfeed.tech/tags/issue.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

The article warns that the account-unlocking security issue in cpp-ethereum was not completely fixed by version 1.2.6. It identifies affected versions from 1.2.0 through 1.2.6, notes that geth, Mist, and the Ethereum Wallet are not affected in the stated configurations, and announces a subsequent bugfix release, version 1.2.7.

## Source excerpt

Affected configurations: cpp-ethereum (eth, AlethZero, ...) version 1.2.0 up to 1.2.6 Note: Neither "geth" nor "Mist" nor the "Ethereum Wallet" (unless explicitly used together with cpp-ethereum) are affected by this, they lock accounts correctly again. This is just a quick head's up that cpp-ethereum's security issue around account security...