CVE-2021-26086Vulnerability
Atlassian Jira Server and Data Center Path Traversal Vulnerability
Exploited in the wildCISA added it to its Known Exploited Vulnerabilities list on .
Reported by 1 independent source · first reported by The Hacker News · last reported
Last reported 18 days ago
CISA KEVAdded 12 Nov 2024
Fix due 3 Dec 2024
Used by ransomware: not knownCISA KEV catalogue
Fix due 3 Dec 2024
Used by ransomware: not knownCISA KEV catalogue
EPSS100.0%
higher than 99% of CVEsFIRST EPSS, as of 26 Sep 2026
higher than 99% of CVEsFIRST EPSS, as of 26 Sep 2026
What the reports say
1 report, newest first · the exact sentence from each-
Critical Atlassian Flaw Lets Unauthenticated Attackers Read Known Files Across 8 Products“CVE-2021-26086 is a path traversal vulnerability in Jira Server and Data Center that allows remote attackers to read specific files.”
Indicators reported together
named in the same reportsAlso named with it: CVE-2026-21589
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