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critical9.8Known exploitedPublic exploit code

CVE-2021-26084

Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-03. Federal due date: 2021-11-17.

Apply updates per vendor instructions.

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

Affected products

VendorProductAffected versions
AtlassianConfluence Data Center
before 6.13.23
from 6.14.0 before 7.4.11
from 7.5.0 before 7.11.6
from 7.12.0 before 7.12.5
AtlassianConfluence Server
before 6.13.23
from 6.14.0 before 7.4.11
from 7.5.0 before 7.11.6
from 7.12.0 before 7.12.5

Weakness classification

CWE-917

References