CVEvulnerability

CVE-2021-26081

5.3 MEDIUM Published 2021-07-20 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-07-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N

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.

Affected configurations

• atlassian data center (< 8.5.14) • atlassian jira (< 8.5.14) • atlassian jira data center (>= 8.6.0 < 8.13.6) • atlassian jira data center (>= 8.14.0 < 8.16.1) • atlassian jira server (>= 8.6.0 < 8.13.6) • atlassian jira server (>= 8.14.0 < 8.16.1)

References