Root causeThe commitHash variable, derived from user input via the --commit-hash CLI argument, is interpolated directly into a shell command using template literals (e.g., execSync(`git show -s --format=%B ${commitHash}`)). Shell metacharacters are interpreted by the shell, enabling command execution.
ImpactThis vulnerability is generally hard to exploit, as it requires --commit-hash to be attacker controlled. The vulnerability primarily affects CI/CD environments where `wrangler pages deploy` is used in automated pipelines and the
--commit-hash parameter is populated from external, potentially untrusted sources. An attacker could exploit this to:
* Run any shell command.
* Exfiltrate environment variables.
* Compromise the CI runner to install backdoors or modify build artifacts.
Credits Disclosed responsibly by kny4hacker.
Mitigation
* Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher.
* Wrangler v3 users are requested to upgrade to Wrangler v3.114.17 or higher.
* Users on Wrangler v2 (EOL) should upgrade to a supported major version.
Metrics
Affected Vendors & Products
No data.
No data.
OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.
| Vendors | Products |
|---|---|
|
Cloudflare
Subscribe
|
Wrangler
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|
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
| Link | Providers |
|---|---|
| https://github.com/cloudflare/workers-sdk |
|
Wed, 21 Jan 2026 20:30:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Cloudflare
Cloudflare wrangler |
|
| Vendors & Products |
Cloudflare
Cloudflare wrangler |
Wed, 21 Jan 2026 08:00:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SummaryA command injection vulnerability (CWE-78) has been found to exist in the `wrangler pages deploy` command. The issue occurs because the `--commit-hash` parameter is passed directly to a shell command without proper validation or sanitization, allowing an attacker with control of `--commit-hash` to execute arbitrary commands on the system running Wrangler. Root causeThe commitHash variable, derived from user input via the --commit-hash CLI argument, is interpolated directly into a shell command using template literals (e.g., execSync(`git show -s --format=%B ${commitHash}`)). Shell metacharacters are interpreted by the shell, enabling command execution. ImpactThis vulnerability is generally hard to exploit, as it requires --commit-hash to be attacker controlled. The vulnerability primarily affects CI/CD environments where `wrangler pages deploy` is used in automated pipelines and the --commit-hash parameter is populated from external, potentially untrusted sources. An attacker could exploit this to: * Run any shell command. * Exfiltrate environment variables. * Compromise the CI runner to install backdoors or modify build artifacts. Credits Disclosed responsibly by kny4hacker. Mitigation * Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher. * Wrangler v3 users are requested to upgrade to Wrangler v3.114.17 or higher. * Users on Wrangler v2 (EOL) should upgrade to a supported major version. | |
| Title | OS Command Injection in `wrangler pages deploy` | |
| Weaknesses | CWE-20 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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MITRE
Status: PUBLISHED
Assigner: cloudflare
Published:
Updated: 2026-01-20T22:58:05.212Z
Reserved: 2026-01-14T08:27:27.244Z
Link: CVE-2026-0933
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-01-20T23:16:06.043
Modified: 2026-01-20T23:16:06.043
Link: CVE-2026-0933
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-01-21T20:18:57Z