Deserialization of Untrusted Data in Bitbucket Data Center and Confluence Data Center - CVE-2022-26133
Published: August 17, 2022 / Updated: January 27, 2023
Vulnerability identifier: #VU66555
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2022-26133
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Atlassian
Affected software:
Bitbucket Data Center
Confluence Data Center
Bitbucket Data Center
Confluence Data Center
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data within the SharedSecretClusterAuthenticator. A remote non-authenticated attacker can send specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2022-26133
Install updates from vendor's website.