CVEs / CVE-2022-26134
CVE-2022-26134: Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability
- Known exploited in the CISA KEV catalog since 2 Jun 2022
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Atlassian Confluence Data Center | from next of 1.3.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.4.17 | 7.4.17 |
| Atlassian Confluence Data Center | from 7.13.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.13.7 | 7.13.7 |
| Atlassian Confluence Data Center | from 7.14.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.14.3 | 7.14.3 |
| Atlassian Confluence Data Center | from 7.15.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.15.2 | 7.15.2 |
| Atlassian Confluence Data Center | from 7.16.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.16.4 | 7.16.4 |
| Atlassian Confluence Data Center | from 7.17.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.17.4 | 7.17.4 |
| Atlassian Confluence Data Center | from 7.18.0, before unspecified | unspecified |
| Atlassian Confluence Data Center | from unspecified, before 7.18.1 | 7.18.1 |
| Atlassian Confluence Server | from next of 1.3.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.4.17 | 7.4.17 |
| Atlassian Confluence Server | from 7.13.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.13.7 | 7.13.7 |
| Atlassian Confluence Server | from 7.14.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.14.3 | 7.14.3 |
| Atlassian Confluence Server | from 7.15.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.15.2 | 7.15.2 |
| Atlassian Confluence Server | from 7.16.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.16.4 | 7.16.4 |
| Atlassian Confluence Server | from 7.17.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.17.4 | 7.17.4 |
| Atlassian Confluence Server | from 7.18.0, before unspecified | unspecified |
| Atlassian Confluence Server | from unspecified, before 7.18.1 | 7.18.1 |
Exploitation
| In CISA KEV since | 2 Jun 2022 |
|---|---|
| Due date for US federal agencies | 6 Jun 2022 |
| Used in ransomware campaigns | Known |
| 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. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-917 |
References
- CVE-2022-26134 on NVD
- CVE-2022-26134 in the CISA KEV catalog
- http://packetstormsecurity.com/files/167430/Confluence-OGNL-Injection-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167431/Through-The-Wire-CVE-2022-26134-Confluence-Proof-Of-Concept.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167432/Confluence-OGNL-Injection-Proof-Of-Concept.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html Exploit, Third Party Advisory, VDB Entry
- https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html Vendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-79016 Issue Tracking, Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26134 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.