CVE-2022-26134 Atlassian Confluence Server/Data Center: command or code injection
In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.
Confirmed exploited by CISA on · US federal patch deadline Jun 6, 2022
What to do
- Install Atlassian's security update for Confluence Server/Data Center. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability
- Product
- Atlassian Confluence Server/Data Center
- CISA description
- Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.
- Type of flaw
- Command or code injection (CWE-917)
- Confirmed exploited
- Jun 2, 2022 — known to be used in ransomware attacks
- US federal patch deadline
- Jun 6, 2022
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2022-26134 ·
Questions about CVE-2022-26134
Is CVE-2022-26134 being exploited?
Yes. CISA added CVE-2022-26134 to its Known Exploited Vulnerabilities catalog on Jun 2, 2022, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2022-26134?
Install Atlassian's security update for Confluence Server/Data Center. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2022-26134?
Only if you use Atlassian Confluence Server/Data Center. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.