Low3.7Atlassian

Jira: The jira.editor.user.mode cookie set by the Jira Editor Plugin in Jira Server and Data Center before version 8.5.12,…

CVE-2021-26076 Published Apr 15, 2021Updated by vendor Jun 17, 2026

CVE-2021-26076

Affected products & platforms

AtlassianJira

Summary

The jira.editor.user.mode cookie set by the Jira Editor Plugin in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before version 8.13.4, and from version 8.14.0 before version 8.15.0 allows remote anonymous attackers who can perform an attacker in the middle attack to learn which mode a user is editing in due to the cookie not being set with a secure attribute if Jira was configured to use https.

Affected versions

8.6.0
8.14.0

Official advisory · high-confidence parse· fetched 4 hours ago·verify at source

Mitigation

Mitigation steps weren't captured by the parser for this advisory — this is a parsing gap, not a statement that no fix exists. Read the vendor advisory below for the authoritative guidance.

Official advisory · high-confidence parse· fetched 4 hours ago·verify at source

Discussion(0)

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