Improper Input Validation Affecting wrangler package, versions >=2.0.15 <3.114.17>=4.0.0 <4.59.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published21 Jan 2026
- disclosed20 Jan 2026
- creditkny4hacker
Introduced: 20 Jan 2026
NewCVE-2026-0933 (opens in a new tab)How to fix?
Upgrade wrangler to version 3.114.17, 4.59.1 or higher.
Overview
wrangler is a Command-line interface for all things Cloudflare Workers
Affected versions of this package are vulnerable to Improper Input Validation via the wrangler pages deploy command when the --commit-hash parameter is passed directly to a shell command without proper validation or sanitization. An attacker can execute arbitrary system commands by supplying crafted input to the --commit-hash parameter.
Note:
This is only exploitable if the --commit-hash parameter is attacker-controlled, such as in CI/CD environments where it is populated from untrusted sources.