CVE-2021-26081

Summary

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 Software

VendorProductVersion RangeStatus
AtlassianJira Serverunspecified < 8.5.14affected
AtlassianJira Server8.6.0 < unspecifiedaffected
AtlassianJira Serverunspecified < 8.13.6affected
AtlassianJira Server8.14.0 < unspecifiedaffected
AtlassianJira Serverunspecified < 8.16.1affected
AtlassianJira Data Centerunspecified < 8.5.14affected
AtlassianJira Data Center8.6.0 < unspecifiedaffected
AtlassianJira Data Centerunspecified < 8.13.6affected
AtlassianJira Data Center8.14.0 < unspecifiedaffected
AtlassianJira Data Centerunspecified < 8.16.1affected

Weaknesses

  • Enumeration

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References