Olaoluwa Osuntokun, CTO at LN-focused startups Lightning Labs and ACINQ, revealed the news in a brief statement on Linux Foundation’s domain on Sept. 10, claiming that there are confirmed instances of Common Vulnerabilities and Exposures (CVE) “being exploited in the wild.”
Following a recent warning on vulnerabilities on Bitcoin’s (BTC) Lightning Network (LN), a startup claims to have found instances of the vulnerability being exploited.
Upgrade advised to avoid loss of funds
The vulnerability was first reported on Aug. 30 by LN coder Rusty Russell. At the time, the Australian software programmer warned of security issues in a number of Lightning projects that could cause loss of funds, urging LN nodes operators to update their software as soon as possible.
Three pieces of software affected
Now that CVE cases have been confirmed, in order to avoid the risks of funds loss, Osuntokun strongly advised users to update their LN versions. The affected versions include LND nodes version 0.7 and below, c-lightning nodes version 0.7 and below and eclair nodes version 0.3 and below, the post noted.
Following the new warning, Lightning Labs tweeted, advising LN users to remain cautious:
“This is also a great time to remind folks that we have limits in place to mitigate widespread funds loss at this early stage. There will be bugs. Don’t put more money on Lightning than you’re willing to lose!”
In mid-August, cryptocurrency consulting firm Lunar Digital Assets warned that private transactions of PIVX cryptocurrency and over 200 other blockchains are vulnerable to attackers obtaining disproportionately high staking rewards.
Lightning Network Developers Warn of Bug That Could Cause Loss of Bitcoin
Developers have disclosed a security hole in various versions of bitcoin’s Lightning Network software that could cause users to lose money if not updated.
It’s unclear how much bitcoin, if any, was lost, or how many users were affected.
Multiple Lightning node versions are vulnerable and should be updated immediately, Osuntokun warned a developer mailing list, adding:
“We’ve confirmed instances of the CVE being exploited in the wild.”
An experimental layer-two solution, Lightning aims to allow nearly costless transactions, making bitcoin feasible for mundane transactions such as coffee purchases.
But the bug shows the technology still has problems like any code-based financial product.
“Security issues have been found in various lightning projects which could cause loss of funds”, Russel said in the original posting. “Full details will be released in 4 weeks (2019-09-27), please upgrade well before then.”
Osuntokun emphasized that lightning is still in its infancy.
“We’d also like to remind the community that we still have limits in place on the network to mitigate widespread funds loss”, he wrote, “and please keep that in mind when putting funds onto the network at this early stage.”
Lightning Labs continued the warning on Twitter, reminding users that it’s still possible to lose funds on the network.
This is also a great time to remind folks that we have limits in place to mitigate widespread funds loss at this early stage. There will be bugs.
Don’t put more money on Lightning than you’re willing to lose!
– Lightning Labs⚡️ (@lightning) September 10, 2019
Versions affected include all LND releases 0.70 and below, C-Lightning 0.70 and below, and éclair 0.3 and below.