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CVE-2025-12543 β€” AI Deep Analysis Summary

CVSS 9.6 Β· Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Red Hat Undertow fails to validate the **Host header** correctly. <br>πŸ’₯ **Consequences**: This flaw can lead to **Cache Poisoning**, **Internal Network Scanning**, or **Session Hijacking**.…

Q2Root Cause? (CWE/Flaw)

πŸ›‘οΈ **Root Cause**: **CWE-20** (Improper Input Validation).…

Q3Who is affected? (Versions/Components)

πŸ“¦ **Affected Product**: **Red Hat build of Apache Camel 4.14.4** for **Spring Boot 3.5.11**. <br>🏒 **Vendor**: **Red Hat**. <br>βš™οΈ **Component**: Uses **Red Hat Undertow** as the default embedded Web server.

Q4What can hackers do? (Privileges/Data)

πŸ•΅οΈ **Attacker Actions**: <br>1. **Cache Poisoning**: Inject false data into caches. <br>2. **Internal Scanning**: Probe internal network services. <br>3. **Session Hijacking**: Steal or manipulate user sessions.…

Q5Is exploitation threshold high? (Auth/Config)

βš–οΈ **Exploitation Threshold**: **Low**. <br>🌐 **Network**: Attack Vector is **Network (AV:N)**. <br>πŸ”“ **Privileges**: **No Privileges Required (PR:N)**.…

Q6Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exploit**: **No**. <br>πŸ“ **PoCs**: The `pocs` array is empty in the provided data. <br>🌍 **Wild Exploitation**: Currently unknown/unconfirmed based on available data.

Q7How to self-check? (Features/Scanning)

πŸ” **Self-Check Method**: <br>1. Identify if you are running **Red Hat build of Apache Camel 4.14.4** with **Spring Boot 3.5.11**. <br>2. Verify if the underlying web server is **Red Hat Undertow**. <br>3.…

Q8Is it fixed officially? (Patch/Mitigation)

βœ… **Official Fix**: **Yes**. <br>πŸ“œ **Advisories**: Red Hat has issued multiple security advisories: <br>- **RHSA-2026:0384** <br>- **RHSA-2026:0386** <br>- **RHSA-2026:3892** <br>- **RHSA-2026:3889** <br>- **RHSA-2026:49…

Q9What if no patch? (Workaround)

πŸ›‘οΈ **Workaround (If No Patch)**: <br>1. Implement a **Reverse Proxy** (e.g., Nginx/Apache) to sanitize/validate the `Host` header before it reaches Undertow. <br>2.…

Q10Is it urgent? (Priority Suggestion)

⚠️ **Urgency**: **High Priority**. <br>πŸ”₯ **Reason**: CVSS Score indicates **High** impact on Confidentiality and Integrity.…