EUVD-2026-27532
GHSA-j8g2-w9r2-vfj2
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Lifecycle Timeline
1DescriptionCVE.org
Vulnerability in the Oracle Macoron Tool product of Oracle Open Source Projects. The supported versions that is affected is v0.22.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Macaron Tool. Successful attacks of this vulnerability can result in Oracle Macaron Tool failing host address validation.
AnalysisAI
Oracle Macaron Tool v0.22.0 fails to properly validate host addresses in HTTP requests, allowing unauthenticated remote attackers to cause information disclosure through crafted network traffic. The vulnerability requires user interaction (UI:R) and affects the confidentiality of the tool's host validation mechanism. No active exploitation has been publicly confirmed.
Technical ContextAI
Oracle Macaron Tool is a component of Oracle Open Source Projects. The vulnerability stems from inadequate host address validation in HTTP communication pathways. The tool's failure to properly validate the host address suggests insufficient verification of HTTP request headers or hostname binding, potentially allowing attackers to manipulate or bypass intended host restrictions. This type of weakness typically affects proxy validation, SSRF protections, or host-based access controls in web-facing applications. The low CVSS score (4.7) reflects the requirement for user interaction and limited information disclosure impact rather than full system compromise.
RemediationAI
Upgrade Oracle Macaron Tool to a patched version beyond v0.22.0. Consult Oracle's official security advisory at https://www.oracle.com/security-alerts/all-oracle-cves-outside-other-oracle-public-documents.html for the specific remediated version and detailed patch instructions. Until patching is possible, implement network-level controls by restricting HTTP access to the Macaron Tool to trusted client networks and hosts, and consider disabling the tool in non-critical environments until a patch is applied. Monitor for unusual HTTP requests targeting the tool's host validation endpoints, as the vulnerability's manipulation of host address validation may be detectable through abnormal request patterns.
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External POC / Exploit Code
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