A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments. CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CVSSv3: Base Score: HIGH (7.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H References: OSSINDEX - [CVE-2024-7885] CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') OSSIndex - http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-7885 OSSIndex - https://access.redhat.com/security/cve/CVE-2024-7885 Vulnerable Software & Versions (OSSINDEX): cpe:2.3:a:io.undertow:undertow-core:2.3.17.Final:*:*:*:*:*:*:* CVE-2016-6311 (OSSINDEX) suppress Get requests in JBoss Enterprise Application Platform (EAP) 7 disclose internal IP addresses to remote attackers. CWE-200 Exposure of Sensitive Information to an Unauthorized Actor CVSSv3: Base Score: MEDIUM (5.300000190734863) Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N References: OSSINDEX - [CVE-2016-6311] CWE-200: Information Exposure OSSIndex - http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-6311 OSSIndex - https://bugzilla.redhat.com/show_bug.cgi?id=1362735 Vulnerable Software & Versions (OSSINDEX): cpe:2.3:a:io.undertow:undertow-core:2.3.17.Final:*:*:*:*:*:*:*