CVE-2021-26081

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CVSS 3.1

5.3 medium

EPSS

1%p66

Published

Jul 20, 2021 (Jul 20, 2021)

Modified

Jun 17, 2026

Description

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.

Vendors: atlassian
Products: data center, jira, jira data center, jira server
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.2%)

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