{"id":"CVE-2026-0933","aliases":["GHSA-36p8-mvp6-cv38"],"url":"https://o3.security/vulnerability/CVE-2026-0933","summary":"OS Command Injection in `wrangler pages deploy`","details":"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.\n\n\n\n\nRoot 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.\n\n\n\n\nImpactThis 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 \n\n--commit-hash parameter is populated from external, potentially untrusted sources. An attacker could exploit this to:\n\n  *  Run any shell command.\n  *  Exfiltrate environment variables.\n  *  Compromise the CI runner to install backdoors or modify build artifacts.\n\n\n\nCredits Disclosed responsibly by kny4hacker.\n\n\n\n\nMitigation\n  *  Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher.\n  *  Wrangler v3 users are requested to upgrade to Wrangler v3.114.17 or higher.\n  *  Users on Wrangler v2 (EOL) should upgrade to a supported major version.","published":"2026-01-20T22:58:05.212Z","modified":"2026-08-12T03:51:33.527762626Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"wrangler","fixedVersion":"3.114.17"},{"ecosystem":"npm","name":"wrangler","fixedVersion":"4.59.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0933.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0933"},{"type":"PACKAGE","url":"https://github.com/cloudflare/workers-sdk"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.527762626Z"}}