CVE-2026-94445
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
A vulnerability in golang.org/x/playground allows a malicious txtar file to escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem. Additionally, one of the paths to invoke 'go vet' did not correctly restrict the execution environment, allowing a read of an environment configuration file from the host's $HOME. Together, these can lead to remote code execution on the playground host.
Risk Assessment
The risk includes remote code execution on the playground host, potentially leading to full system compromise, data integrity violation, or further attacks.
Recommendation
Upgrade golang.org/x/playground to the latest version with fixes and avoid running untrusted txtar files.
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Original NVD description (English source)
A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem. Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME. Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself. This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

