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CVE-2022-26134

9.8
CRITICALCVSS v3.1 Base Score
94.41%
HIGH RiskEPSS (100th percentile)
KEV

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.

Published: 6/3/2022
Modified: 10/24/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability

Vendor / Product:

Atlassian Confluence Server/Data Center

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.

Due Date: 6/6/2022(OVERDUE)
Ransomware Campaign Use
Added to KEV:

6/2/2022

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2022-26134

Vulnerability Summary

CVSS v3 Score

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2 Score

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Score (Exploitation Probability)

94.41%HIGH Exploitation Risk
100th percentile

This vulnerability has a 94.41% probability of being exploited in the next 30 days, ranking higher than 100% of all scored CVEs.

CWE Classification

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