CVE-2026-67195
highpriority · track · 0EPSS 0.012 · 68 %ileEUEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.3–8.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://christbowel.com/blog/perspective-5-0-0-five-cves/cnnvd
- https://github.com/perspective-dev/perspective/releasesPatchcnnvd
- https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injectioncnnvd
- https://christbowel.com/blog/perspective-5-0-0-five-cves/enisa_euvd
- https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injectionenisa_euvd
- https://christbowel.com/blog/perspective-5-0-0-five-cves/nvd
- https://www.vulncheck.com/advisories/perspective-rce-via-eval-expression-injectionnvd
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