CVE-2022-26134
Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Immediately block all internet traffic to and from affected products AND apply the update per vendor instructions [https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html] OR remove the affected products by the due date on the right. Note: Once the update is successfully deployed, agencies can reassess the internet blocking rules.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2022-26134
Description
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 from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation Context
as of October 14, 2026- CISA added CVE-2022-26134 to the KEV catalog 1 day before its CVE record was published.
- It is one of 13 Atlassian entries in the CISA KEV catalog, and one of 5 added in 2022.
- Its current EPSS score (100.0%) is higher than that of 97% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Atlassian | Atlassian Confluence Data Center | next of 1.3.0 to <unspecified unspecified to <7.4.17 7.13.0 to <unspecified unspecified to <7.13.7 7.14.0 to <unspecified unspecified to <7.14.3 7.15.0 to <unspecified unspecified to <7.15.2 7.16.0 to <unspecified unspecified to <7.16.4 7.17.0 to <unspecified unspecified to <7.17.4 7.18.0 to <unspecified unspecified to <7.18.1 |
| Atlassian | Atlassian Confluence Server | next of 1.3.0 to <unspecified unspecified to <7.4.17 7.13.0 to <unspecified unspecified to <7.13.7 7.14.0 to <unspecified unspecified to <7.14.3 7.15.0 to <unspecified unspecified to <7.15.2 7.16.0 to <unspecified unspecified to <7.16.4 7.17.0 to <unspecified unspecified to <7.17.4 7.18.0 to <unspecified unspecified to <7.18.1 |
References
6 Links- https://jira.atlassian.com/browse/CONFSERVER-79016
- http://packetstormsecurity.com/files/167432/Confluence-OGNL-Injection-Proof-Of-Concept.html
- http://packetstormsecurity.com/files/167430/Confluence-OGNL-Injection-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/167431/Through-The-Wire-CVE-2022-26134-Confluence-Proof-Of-Concept.html
- http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html
- https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html
Record Details
More from Atlassian
Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability
Atlassian Jira Server and Data Center Path Traversal Vulnerability
Atlassian Confluence Data Center and Server Template Injection Vulnerability
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.