CVE-2021-26084 · netVigilance record NV21-0216

Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection

past due ransomware

What to do

Apply updates per vendor instructions.

CISA deadline 2021-11-17 · passed 4 years 9 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Atlassian Confluence Server and Data Server contain an Object-Graph Navigation Language (OGNL) injection vulnerability that may allow an unauthenticated attacker to execute code.

Who is affected

Atlassian Confluence Server and Data Center. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-917.

Timeline

2021-11-03
Added to CISA KEVExploitation in the wild confirmed by CISA
2021-11-17
CISA remediation deadlinepassed 4 years 9 months ago

Sources

NVD entry for CVE-2021-26084 nvd.nist.gov/vuln/detail/CVE-2021-26084
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-26084