{"id":"CVE-2026-67195","state":"PUBLISHED","title":"Perspective 5.0.0 RCE via eval() Expression Injection","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.","publishedAt":"2026-08-04T14:03:17.891Z","updatedAt":"2026-08-04T15:06:09.203Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["perspective-dev perspective"],"affected":[{"vendor":"perspective-dev","product":"perspective","packageURL":"pkg:github/perspective-dev/perspective","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.0.0","versionType":"semver"}],"repo":"https://github.com/perspective-dev/perspective"}],"references":["https://christbowel.com/blog/perspective-5-0-0-five-cves/","https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injection"],"weaknesses":["CWE-95"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/67xxx/CVE-2026-67195.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67195","state":"PUBLISHED","datePublished":"2026-08-04T14:03:17.891Z","dateUpdated":"2026-08-04T15:06:09.203Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-07-28T16:06:49.774Z"},"containers":{"cna":{"title":"Perspective 5.0.0 RCE via eval() Expression Injection","descriptions":[{"lang":"en","value":"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. 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