{"id":1744,"date":"2023-11-21T05:34:25","date_gmt":"2023-11-21T05:34:25","guid":{"rendered":"https:\/\/certera.com\/kb\/?p=1744"},"modified":"2024-10-08T04:57:37","modified_gmt":"2024-10-08T04:57:37","slug":"how-to-remove-the-err_ssl_pinned_key_not_in_cert_chain-error","status":"publish","type":"post","link":"https:\/\/certera.com\/kb\/how-to-remove-the-err_ssl_pinned_key_not_in_cert_chain-error\/","title":{"rendered":"How to Resolve the ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN Error?"},"content":{"rendered":"\n

Have you ever experienced or faced the ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN error? If so, you must know it’s difficult to mitigate or resolve, especially as an end user rather than a webmaster. A webmaster who owns and manages a website is more equipped to handle server-side issues like the ones we are currently discussing. <\/p>\n\n\n\n

This error arises from key pinning settings, a part of the now obsolete but once essential HTTP Public Key Pinning (HPKP). This mechanism safeguards against impersonation through misused or fraudulent digital certificates.<\/p>\n\n\n\n

As an end user, your options for resolving this error are limited. One effective solution is using Chrome’s function to remove the – “HSTS key.” Apart from this, notifying the webmaster might also help you. <\/p>\n\n\n\n

But if you’re a webmaster without deep technical knowledge, you should exercise caution with key pinning unless you’re confident in your skills or an expert. Otherwise, this error will keep on popping.<\/p>\n\n\n\n

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What is the ERR SSL PINNED KEY NOT IN CERT CHAIN Error?<\/h2>\n\n\n\n

The ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN error is a type of Secure Socket Layer error typically occurring in – Google Chrome. This error is related to an issue with the website’s SSL certificate, particularly concerning the – public key pinning (HPKP) feature. <\/p>\n\n\n\n

HPKP is a security mechanism that allows web admins to specify which cryptographic public keys are associated with their SSL certificate. When a browser encounters a key that doesn’t match the pinned keys, it triggers the error.\u00a0<\/p>\n\n\n\n

What Causes this Error?<\/h2>\n\n\n\n

This error can arise from “n” number of issues. An incorrect SSL certificate renewal, where public keys aren’t updated as needed, is a common cause. Errors in configuring public key pinning can also lead to this problem, especially if the keys set don’t match those in the SSL certificate. <\/p>\n\n\n\n

Sometimes, the issue might stem from the browser’s handling of SSL certificates.<\/p>\n\n\n\n

Steps to Resolve this Error<\/h2>\n\n\n\n

As a user, there is only one method that you can utilize to resolve this Google Chrome error. You can remove the fixed HSTS key, and once done, reaccess the site and see if the issue has been resolved.<\/p>\n\n\n\n

Follow the steps mentioned below to remove the fixed HSTS key:<\/strong><\/p>\n\n\n\n