CVE-2026-24343
📋 TL;DR
This XPath injection vulnerability in Apache HertzBeat allows attackers to manipulate XPath queries by injecting malicious data, potentially accessing or modifying sensitive information. It affects all users running Apache HertzBeat versions 1.7.1 through 1.8.0 (excluding 1.8.0).
💻 Affected Systems
- Apache HertzBeat
📦 What is this software?
Hertzbeat by Apache
⚠️ Risk & Real-World Impact
Worst Case
Attackers could extract sensitive configuration data, modify monitoring settings, or potentially gain unauthorized access to monitored systems.
Likely Case
Information disclosure of monitoring configuration and system details, potentially leading to further attacks.
If Mitigated
Limited impact if proper input validation and output encoding are implemented at application layer.
🎯 Exploit Status
XPath injection typically requires minimal technical skill and can be exploited with common web testing tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.0
Vendor Advisory: https://lists.apache.org/thread/b2k3jqwffrbo2sy6bl4n0f68kp8bfo1n
Restart Required: Yes
Instructions:
1. Download Apache HertzBeat version 1.8.0 from official Apache repository. 2. Stop the HertzBeat service. 3. Backup current configuration and data. 4. Replace installation with version 1.8.0. 5. Restore configuration if needed. 6. Start the service.
🔧 Temporary Workarounds
Input Validation Filter
allImplement application-level input validation to sanitize user inputs before processing XPath queries
Implement input validation in application code to reject or sanitize special XPath characters
Network Isolation
linuxRestrict network access to HertzBeat instance to trusted networks only
iptables -A INPUT -p tcp --dport [hertzbeat_port] -s [trusted_network] -j ACCEPT
iptables -A INPUT -p tcp --dport [hertzbeat_port] -j DROP
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block XPath injection patterns
- Restrict user permissions and implement principle of least privilege for HertzBeat service account
🔍 How to Verify
Check if Vulnerable:
Check HertzBeat version via web interface or configuration files. If version is 1.7.1 or any version before 1.8.0, system is vulnerable.Check Version:
Check hertzbeat.yml configuration file or web interface dashboard for version informationVerify Fix Applied:
After upgrade, verify version shows 1.8.0 or higher in web interface or configuration.📡 Detection & Monitoring
Log Indicators:
- Unusual XPath query patterns in application logs
- Multiple failed authentication attempts followed by XPath queries
- Log entries containing special XPath characters like ' or // or *
Network Indicators:
- HTTP requests containing XPath syntax in parameters
- Unusual traffic patterns to HertzBeat endpoints
SIEM Query:
source="hertzbeat.logs" AND (message="*XPath*" OR message="*injection*" OR parameters CONTAINS "'" OR parameters CONTAINS "//")