Critical 9.8Known exploited (CISA KEV)Published Jun 3, 2022

CVE-2022-26134In 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…

Updated under an hour ago (Oct 27, 2026, 5:50 AM ET)

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It affects Atlassian Confluence Data Center and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Jun 2, 2022; federal agencies had to remediate by Jun 6, 2022, and it is known to be used in ransomware. Treat that date as your deadline.

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Every CVE for Atlassian Confluence Data Center

Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-917
Known exploited: Added to CISA KEV Jun 2, 2022; federal remediation due Jun 6, 2022; known ransomware useImmediately 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.
EPSS (exploitation in the next 30 days): 100.00% (percentile 100)
Assigned by: atlassian
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Atlassian Confluence Data Center atlassian:confluence_data_center (from the name)	from next of 1.3.0 before unspecified; from unspecified before 7.4.17; from 7.13.0 before unspecified; from unspecified before 7.13.7; from 7.14.0 before unspecified; from unspecified before 7.14.3; from 7.15.0 before unspecified; from unspecified before 7.15.2; and 6 more ranges	CNA record
Atlassian Confluence Server atlassian:confluence_server (from the name)	from next of 1.3.0 before unspecified; from unspecified before 7.4.17; from 7.13.0 before unspecified; from unspecified before 7.13.7; from 7.14.0 before unspecified; from unspecified before 7.14.3; from 7.15.0 before unspecified; from unspecified before 7.15.2; and 6 more ranges	CNA record
atlassian confluence_data_center atlassian:confluence_data_center	from 1.3 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; 7.18.0	NVD
atlassian confluence_server atlassian:confluence_server	from 1.3 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; 7.18.0	NVD

References

References

https://jira.atlassian.com/browse/CONFSERVER-79016	x-refsource-misc, issue-tracking, patch, vendor-advisory
http://packetstormsecurity.com/files/167432/Confluence-OGNL-Injection-Proof-Of-Concept.html	x-refsource-misc, third-party-advisory, vdb-entry
http://packetstormsecurity.com/files/167430/Confluence-OGNL-Injection-Remote-Code-Execution.html	x-refsource-misc, exploit, third-party-advisory, vdb-entry
http://packetstormsecurity.com/files/167431/Through-The-Wire-CVE-2022-26134-Confluence-Proof-Of-Concept.html	x-refsource-misc, third-party-advisory, vdb-entry
http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html	x-refsource-misc, exploit, third-party-advisory, vdb-entry
https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html	x-refsource-misc, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26134	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.