Could not verify the SSL certificate for https://rubygems.org/

Question

I'm getting this error when I run bundle install:

Could not verify the SSL certificate for https://rubygems.org/.
There is a chance you are experiencing a man-in-the-middle attack, but most likely 
your system doesn't have the CA certificates needed for verification. For
information about OpenSSL certificates, see bit.ly/ruby-ssl. To connect without using 
SSL, edit your Gemfile sources and change 'https' to 'http'.

However, it is only happening to one of my projects, and seems to be happening to only me. Also, I can get around it by running bundle update, where I don't get that error, and I can get up a running after that.

Is there something that isn't tracked in the project (that is only on my machine) that I have misconfigured?

Solution 1

I had this problem on Mac OS X Yosemite with ruby 2.3.1. I fixed the problem by downloading http://curl.haxx.se/ca/cacert.pem to /usr/local/etc/openssl/

and adding this line export SSL_CERT_FILE=/usr/local/etc/openssl/cacert.pem to .bash_profile

Credit to Can't run Ruby 2.2.3 with RVM on OSX but it was hard to google the right answer, so added to this page.

Solution 2

The solution for me on OS X 10.9.5 was to sudo rvm osx-ssl-certs update all.

Source: http://jacopretorius.net/2013/10/could-not-verify-the-ssl-certificate-for-rubygems.html

Solution 3

Running gem update --system worked for me

Solution 4

For linux users, simply install the package: ca-certificates

Solution 5

Since I am using rbenv instead of rvm, I wasn't able to do most of the solutions online.

I was able to fix the issue by uninstalling and reinstalling openssl

All is well, but I am not exactly sure why.

View more solutions

Comments

[23tux]

here is also a good solution: stackoverflow.com/questions/19150017/…

[rejin]

dont try this, man. most of my Dependant packages got removed as result.

[userFriendly]

In case it is not obvious to Zsh users, add the export line to .zshrc

[Mikel]

This fixed the problem for me, using rbenv on Ubuntu 18.04.1

[cdpalmer]

Updated this as a better answer due to upvotes (and my solution was 5 years old)

[Sohair Ahmad]

This solution worked for me too. For Mac OSX BigSur, Ruby 2.6.4 and RVM 1.29.7 (1.29.7)