{"id":"CVE-2026-67195","title":"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 pass…","summary":"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 pass…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-95"],"published":"2026-08-04","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:35:08.537","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-67195","references":[{"url":"https://christbowel.com/blog/perspective-5-0-0-five-cves/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injection","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.01156,"epssPercentile":0.65664,"ingestedAt":"2026-09-09T21:22:45.522Z","slug":"CVE-2026-67195","body":"## Overview\n\nPerspective 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}