CVE-2026-10025 in QRadar
Summary
by MITRE • 08/05/2026
IBM QRadar 7.6.0.0 through 7.6.0.1, and 7.5.0 through 7.5.0 UP 15 Interim Fix 005 has an XML External Entity (XXE) injection vulnerability. The vulnerability resides in the parseXmlPayload() function within the event processing pipeline ( q1labs_core.jar ). When at least one log source type is configured to use XML-format property autodetection, the system processes XML-formatted syslog events sent to port 514 (UDP/TCP) without authentication.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 08/05/2026
This vulnerability represents a critical xml external entity injection flaw in ibm qradar's event processing pipeline that stems from insufficient input validation within the parseXmlPayload() function. The issue manifests when the system automatically detects and processes xml-formatted syslog events through udp/tcp port 514 without requiring any authentication mechanisms. The root cause lies in the application's failure to properly sanitize xml payloads, allowing malicious actors to craft specially formatted xml documents that can trigger external entity resolution during parsing operations. This vulnerability directly maps to cwe-611 (xml external entity injection) and aligns with attack techniques documented in the attack framework under t1213 (data from information repositories) and t1078 (valid accounts). The flaw exists across multiple versions of qradar including 7.6.0.0 through 7.6.0.1 and 7.5.0 through 7.5.0 up 15 interim fix 005, indicating a widespread impact within the product line.
The operational impact of this vulnerability is severe as it allows remote attackers to potentially access sensitive system information, perform unauthorized data exfiltration, or even execute arbitrary code on the affected qradar instance. When xml-formatted events are received through port 514, the system's automatic xml autodetection feature triggers the vulnerable parseXmlPayload() function, which processes external entities without proper validation. Attackers can leverage this weakness to reference external resources that may contain malicious content or to perform server-side request forgery attacks against internal systems. The lack of authentication requirements for processing these events means any network traffic sent to port 514 could potentially exploit this vulnerability, making it particularly dangerous in environments where qradar receives syslog data from multiple sources.
Organizations should implement immediate mitigations including disabling xml autodetection for log sources when possible, configuring firewall rules to restrict access to udp/tcp port 514 to trusted sources only, and applying the latest security patches provided by ibm. The recommended approach involves implementing proper input validation that prevents external entity resolution during xml parsing operations, which aligns with secure coding practices outlined in owasp top ten and iso/iec 27001 security standards. Network segmentation should be enforced to limit which systems can send syslog data to qradar, while monitoring should be implemented to detect unusual patterns of xml processing activity that may indicate exploitation attempts. Additionally, system administrators should consider implementing intrusion detection systems with rules specifically designed to identify malicious xml payloads targeting this vulnerability, as well as regularly reviewing system logs for any evidence of unauthorized access or data exfiltration activities related to the affected qradar versions.