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Medium severity5.3NVD Advisory· Published Jul 20, 2021· Updated Jun 17, 2026

CVE-2021-26081

CVE-2021-26081

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Atlassian/Data Center
    cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*
    Range: <8.5.14
  • Atlassian/Jira
    cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
    Range: <8.5.14
  • Atlassian/Jira Data Center
    cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
    Range: >=8.6.0,<8.13.6
  • Atlassian/Jira Server3 versions
    cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*range: >=8.6.0,<8.13.6
    • (no CPE)range: <8.5.14, 8.6.0 to <8.13.6, 8.14.0 to <8.16.1
    • (no CPE)range: unspecified
  • Atlassian/Jira Core Data Centerllm-fuzzy2 versions
    <8.5.14, 8.6.0 to <8.13.6, 8.14.0 to <8.16.1+ 1 more
    • (no CPE)range: <8.5.14, 8.6.0 to <8.13.6, 8.14.0 to <8.16.1
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

0

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