Atlassian - Path Traversal (CVE-2021-26086)
14497Exploiting IPs reported
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.
CrowdSec analysis
CVE-2021-26086 is a vulnerability in Atlassian Jira Server and Data Center that allows remote attackers to perform path traversal and access sensitive files, particularly through the /WEB-INF/web.xml endpoint.
CrowdSec has been tracking this vulnerability and its exploits since 13th of December 2021.
CrowdSec network data shows that most actors exploiting CVE-2021-26086 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2021-26086. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.
Observed attempts focus on accessing resources at the /WEB-INF/web.xml path.
Exploitation
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Common Weakness Enumeration (CWE)
Protection
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Blocklist
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