CVE Catalog

CVE-2020-26217

HighCVSS 8.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Very high risk
85.00%

100th percentile - higher than 100% of all known CVEs

Summary

Vulnerability in XStream before version 1.4.14 allows remote code execution. An attacker can run arbitrary shell commands by manipulating the processed input stream. Only users relying on blocklists are affected.

Risk Assessment

A remote attacker can take control of the system by executing arbitrary commands, potentially leading to full compromise of the application and server.

Recommendation

Upgrade XStream to version 1.4.14 or later. If you cannot upgrade, apply the workarounds described in the security advisory.

Other vulnerabilities in XStream

See all
Original NVD description (English source)

XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS