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Bug
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Resolution: Unresolved
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Low
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None
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10.0.0, 10.3.0, 10.3.8, 10.3.10, 11.0.0, 11.0.1
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None
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10
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1
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Severity 3 - Minor
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Issue Summary
As per the existing design, the only supported URL variables for the webhook invoked from post function are:
- project.id
- project.key
- issue.id
- issue.key
In Jira 10.x, variable substitution no longer requires the $ token— only curly braces are needed, unlike in previous versions.
However, an issue arises when a webhook is triggered from a workflow Postfunction, if, the webhook URL contains any substitution variable in curly braces other than mentioned above (for example,
{comment.Id}), the webhook fails with the error: "URISyntaxException: Illegal character in path at"
Steps to Reproduce
- Created a Webhook like below that sends "Comment ID" to the connecting application as part of the URL parameter
https://<Webhook URL>/comment={comment.id}
- Add a Post Function to a status that calls the same Webhook on status change
- Now, when the Status is changed, the Webhook triggered fails with below Error
2025-09-08 21:18:49,847+0530 ForkJoinPool.commonPool-worker-15 WARN [c.a.w.internal.publish.DefaultWebhookDispatcher] Webhook invocation [d2f68254-46d4-4b4e-91ff-6568e6cf8e8c] to [https://xxx.com/hjqu20r/ comment={comment.id}] failed with an error java.lang.IllegalArgumentException: Illegal character in path at index 66: https://xxx.com/hjqu20r/comment={comment.id} at java.base/java.net.URI.create(URI.java:906) at com.atlassian.webhooks.internal.client.request.RawRequest.hasQueryParams(RawRequest.java:149) at com.atlassian.webhooks.internal.client.request.RawRequest.buildAdditionalQueryParams(RawRequest.java:139) at com.atlassian.webhooks.internal.client.request.RawRequest.getUrl(RawRequest.java:108) at com.atlassian.webhooks.internal.client.request.DefaultRequestExecutor.execute(DefaultRequestExecutor.java:58) at com.atlassian.webhooks.internal.publish.DefaultWebhookDispatcher.dispatch(DefaultWebhookDispatcher.java:88) at com.atlassian.webhooks.internal.DefaultWebhookService.lambda$publish$9(DefaultWebhookService.java:309) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at com.atlassian.webhooks.internal.DefaultWebhookService.lambda$publish$10(DefaultWebhookService.java:306) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:842) Caused by: java.net.URISyntaxException: Illegal character in path at index 66: https://xxx.com/hjqu20r/comment={comment.id} at java.base/java.net.URI$Parser.fail(URI.java:2974) at java.base/java.net.URI$Parser.checkChars(URI.java:3145) at java.base/java.net.URI$Parser.parseHierarchical(URI.java:3227) at java.base/java.net.URI$Parser.parse(URI.java:3175) at java.base/java.net.URI.<init>(URI.java:623) at java.base/java.net.URI.create(URI.java:904)
Note- This setup works fine with Jira 9.12.x where if there's no supported variable to replace it with, we put nothing in its place .
Expected Results
Webhook should be invoked without error via Post Function and any unmatched variable should be omitted from the URL.
Actual Results
Webhook is not invoked via Post Function and fails with "Illegal character in path at index ..." Error
Workaround
Create a separate Webhook that are to be invoked via Post Function and ensure that only the following supported substitution variables are used in the webhook URL:.
- project.id
- project.key
- issue.id
- issue.key
