The following is a list of fixed Confluence versions: However, Atlassian updated its advisory on June 3 at 10am PDT confirming the availability of patches. No, Atlassian says that if you access Confluence through an domain, your site is not vulnerable and there is currently no evidence that Cloud sites have been targeted.Īt the time this blog post was published, a patch was not available for this vulnerability. We use Confluence as part of Atlassian Cloud. No, Atlassian has since confirmed that all supported versions of Confluence Server and Data Center are affected. Yes, according to Atlassian’s advisory, there is known exploitation of this vulnerability against Confluence Server version 7.18.0. Successful exploitation would allow an attacker to execute code remotely, which could result in full system takeover. However, based on past vulnerabilities in Confluence, an attacker could exploit this flaw by sending a specially crafted request to a vulnerable Confluence Server or Data Center instance that is publicly accessible over the internet. How can an attacker exploit this vulnerability?Īt the time of publication, specific details regarding how this vulnerability could be exploited were not made public. However, based on Atlassian’s severity level ratings, this puts this vulnerability between a CVSSv3 of 9.0 to 10.0. At this time, there is no entry for this CVE in the National Vulnerability Database, so it has not been assigned an official CVSSv3 score. It can be deployed on-prem or as part of Atlassian Cloud.ĬVE-2022-26134 is a remote code execution vulnerability in Atlassian Confluence Server and Data Center.ĬVE-2022-26134 was given a critical rating by Atlassian.

What is Atlassian Confluence Server and Data Center?Ĭonfluence is web-based software used for workspace collaboration. On June 2, Atlassian published an advisory for CVE-2022-26134, a critical zero-day remote code execution vulnerability in Confluence Server and Data Center. Update June 3: The FAQ has been updated to reflect the availability of several proof-of-concept exploit scripts for this vulnerability.

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