CVE-2026-67195 Details
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.
A remote code execution vulnerability exists in Perspective version 5.0.0. This issue allows unauthenticated attackers to execute arbitrary operating system commands by sending crafted expression strings to the PolarsVirtualServer backend. The backend directly passes the client-supplied input to Python's eval() function, with only the built-ins cleared. Exploitation is possible through Python object attribute traversal, accessing subprocess.Popen via specific protobuf messages, and executing commands in the Perspective host process.
No fixed version is available. Users are advised not to expose expression authoring to untrusted parties, as there is no safe configuration for eval. If using the Perspective viewer, load an explicit plugin package and ensure the default Debug plugin is not used.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 4, 2026CISA-ADP
Assessed Aug 4, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://christbowel.com/blog/perspective-5-0-0-five-cves/ | [email protected] | BundleExploitRemedyTechnical Analysis |
| https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injection | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-95 | Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Perspective | <= 5.0.0 (semver) |
CPE
Remediation
| |
| Perspective PolarsVirtualServer | <= 5.0.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | CISA-ADP |
| Aug 4, 2026 | New CVE Received | [email protected] |