CVE-2026-67195

8.8 HIGH

Published 2026-08-04 · Updated 2026-08-04

AI risk analysis

Summary: The flaw allows unauthenticated attackers to execute arbitrary commands by submitting crafted expressions to the PolarsVirtualServer backend, leveraging Python's eval() function.
Exploitability: Exploitation is relatively straightforward given the lack of authentication requirements and direct input handling by eval().
Blast radius: If exploited, this could lead to full compromise of the Perspective host system, including data theft and control of the system.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Disable the affected feature or upgrade to a version that addresses this vulnerability, such as 'Upgrade to 5.1.0 or later'.

rcewebpythonevalunauthenticated

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

Perspective 5.0.0 contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary operating system commands by submitting crafted expression strings to the PolarsVirtualServer backend, which passes client-supplied input directly to Python's eval() with only __builtins__={} cleared. Attackers can exploit Python object attribute traversal through the interpreter's loaded class list to reach subprocess.Popen via a TableValidateExprReq or TableMakeViewReq protobuf message, achieving arbitrary command execution in the Perspective host process.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-95

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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