Atlassian · Confluence Server/Data Center
CVE-2022-26134
Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability
What it is
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.
CISA: Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.
What to do
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.
Deadline for US federal agencies: June 6, 2022
- Added to the CISA list
- June 2, 2022
- Published
- June 3, 2022
- Severity
- Critical 9.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- >99.9% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-917
- More details
- NVD · CVE.org · CISA
All references (6)
- 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
More exploited flaws from Atlassian
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Oct 15, 2026 | Files or Directories Accessible to External Parties | Multiple Products | Critical 9.3 | 99.5% |
| Nov 12, 2024 | Path Traversal | Jira Server and Data Center | Medium 5.3 | >99.9% |
| Jan 24, 2024 | Template Injection | Confluence Data Center and Server | Critical 10.0 | >99.9% |
| Nov 7, 2023 | Improper Authorization | Confluence Data Center and Server | Critical 10.0 | >99.9% |
| Oct 5, 2023 | Broken Access Control | Confluence Data Center and Server | Critical 10.0 | 99.2% |
| Sep 30, 2022 | Command Injection | Bitbucket Server and Data Center | High 8.8 | 99.1% |
| Jul 29, 2022 | Questions For Confluence App Hard-coded Credentials | Confluence | Critical 9.8 | 98% |
| Mar 28, 2022 | Pre-Authorization Arbitrary File Read | Confluence Server | Medium 5.3 | 99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.