PatchSiren cyber security CVE debrief
CVE-2026-0270 Palo Alto Networks CVE debrief
A path traversal vulnerability in Palo Alto Networks Cortex XSOAR engine software running on Linux allows an unauthenticated attacker on an adjacent network, with the ability to intercept and manipulate network response traffic via a man-in-the-middle (MITM) attack, to write arbitrary files to the host.
- Vendor
- Palo Alto Networks
- Product
- Cortex XSOAR
- CVSS
- MEDIUM 4.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-10
- Original CVE updated
- 2026-06-11
- Advisory published
- 2026-06-10
- Advisory updated
- 2026-06-11
Who should care
Users of Palo Alto Networks Cortex XSOAR engine software running on Linux, particularly those with exposure to adjacent networks.
Technical summary
The vulnerability, tracked as CVE-2026-0270, is a path traversal issue in Palo Alto Networks Cortex XSOAR engine software running on Linux. This vulnerability allows an unauthenticated attacker on an adjacent network to write arbitrary files to the host by intercepting and manipulating network response traffic via a man-in-the-middle (MITM) attack.
Defensive priority
MEDIUM
Recommended defensive actions
- Apply patches or updates provided by Palo Alto Networks to address the vulnerability.
- Implement network segmentation and isolation to limit access to the affected systems.
- Monitor network traffic for suspicious activity and implement intrusion detection and prevention systems.
- Consider implementing a web application firewall (WAF) to detect and prevent attacks.
Evidence notes
The CVE-2026-0270 vulnerability has a CVSS score of 4.8 and is considered MEDIUM severity. The vulnerability was published on June 10, 2026, and modified on June 11, 2026.
Official resources
CVE-2026-0270 was published on [cvePublishedAt] and modified on [cveModifiedAt].