CVE-2021-26081
moderate-risk
Published 2021-07-20
REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.
Do I need to act?
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0.51% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10
Medium
NETWORK
/ LOW complexity
Affected Products (4)
Affected Vendors
References (2)
33
/ 100
moderate-risk
Severity
21/34 · High
Exploitability
2/34 · Minimal
Exposure
10/34 · Low