CVE-2019-8449 Information disclosure in Jira

What is CVE-2019-8449?

CVE-2019-8449 is a medium-severity vulnerability in Atlassian Jira, published on 11 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

Weakness: CWE-306

Which versions are affected by CVE-2019-8449?

It affects 1 product.

Products include Atlassian Jira.

How do I fix CVE-2019-8449?

No fix has been published for CVE-2019-8449 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-8449 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-8449 exists.

Public exploit code: 1 Exploit-DB entry, 1 Nuclei template and 2 proofs of concept on GitHub.

Other vulnerabilities in Atlassian Jira

• CVE-2020-14172 Deserialization in Jira Server Critical 9.8
• CVE-2019-20409 Code injection in Jira Server Critical 9.8
• CVE-2017-5983 Deserialization in n/a Critical 9.8
• CVE-2010-1165 Code injection in n/a Critical 9.0
• CVE-2016-4319 Cross-site request forgery in Atlassian JIRA Server before 7.1.9 High 8.8

All Atlassian Jira vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8wr9-r69x-g268.