CVE-2022-0265
Published: 03 March 2022
Summary
CVE-2022-0265 is a critical-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Hazelcast Hazelcast. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 7.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-0265 is an XML External Entity (XXE) vulnerability arising from improper restriction of XML external entity references, assigned CWE-611. It affects the Hazelcast open-source data grid platform, specifically version 5.1-BETA-1 in the hazelcast/hazelcast GitHub repository.
An unauthenticated attacker can supply a crafted XML document over the network to trigger the flaw. Successful exploitation yields full impact on confidentiality, integrity, and availability, consistent with the CVSS 9.8 rating that reflects remote attackability without credentials or user interaction.
Public references point to a fix merged in commit 4d6b666cd0291abd618c3b95cdbb51aa4208e748, which addresses the XXE issue in the affected Hazelcast codebase; the associated huntr.dev bounty report documents the discovery and remediation steps. The EPSS score reached a peak of 0.0968 before settling at the current value of 0.0831.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-1392
Vulnerability details
Improper Restriction of XML External Entity Reference in GitHub repository hazelcast/hazelcast in 5.1-BETA-1.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.