Error 403 when attempting to create Issue
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
While trying to create an issue with the text java.lang.Runtime in the Summary/description field, Communications Breakdown error is observed on Jira UI. Following error may be witnessed:
Environment
Any version of Jira Software or Service management (Server & Datacenter) running in AWS with Web Application Firewall (WAF) configured.
Diagnosis
The following appears in the in the Browsers inspection console (HAR File).
summary=java.lang.Runtime&issueId=123456&atl_token=ABCD_lin&singleFieldEdit=true&fieldsToForcePresent=summary POST 403Cause
The 403 error message indicates that access to the resource is forbidden for some reason and can typically be caused by a firewall restrictions. In this case, AWS WAF rule groups are configured to block request patterns that are known to be invalid and are associated with exploitation or discovery of vulnerabilities. If a request matches an AWS WAF rule that is set to Block, then by default AWS WAF returns a 403 Forbidden error. Any string (Example: Java.lang.Runtime) part of request patterns which are blocked by WAF rule groups can lead to the error Communications Breakdown.
Solution
Contact your Network Administrator and Identify the firewall or WAF rule or rule group that's blocking the request.
Make changes to the identified rule to allow your request.
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