CVE-2026-67195 Perspective 5.0.0 RCE via eval() Expression Injection
Unauthenticated attackers can execute arbitrary OS commands in Perspective by injecting malicious expressions into the PolarsVirtualServer backend.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-67195?
CVE-2026-67195 is a high-severity code injection vulnerability in perspective-dev perspective, published on 4 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-95
Which versions are affected by CVE-2026-67195?
How do I fix CVE-2026-67195?
No fix has been published for CVE-2026-67195 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-67195 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67195 exists.
Sources
Also known as GHSA-3jqr-28gj-8vq4.