{"id":"CVE-2026-67195","published":"2026-08-04T15:16:40.130","lastModified":"2026-08-04T16:16:27.800","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.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-95"],"vendors":[],"products":[],"references":[{"url":"https://christbowel.com/blog/perspective-5-0-0-five-cves/","tags":[]},{"url":"https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injection","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"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.","remediation":"Disable the affected feature or upgrade to a version that addresses this vulnerability, such as 'Upgrade to 5.1.0 or later'.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","web","python","eval","unauthenticated"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-30T09:22:49.992Z"}}