{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-0933", "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "state": "PUBLISHED", "assignerShortName": "cloudflare", "dateReserved": "2026-01-14T08:27:27.244Z", "datePublished": "2026-01-20T22:58:05.212Z", "dateUpdated": "2026-01-20T22:58:05.212Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "Wrangler", "product": "Wrangler", "repo": "https://github.com/cloudflare/workers-sdk", "vendor": "Cloudflare", "versions": [{"lessThanOrEqual": "v3.114.16", "status": "affected", "version": "v3.0.0", "versionType": "semver"}, {"lessThanOrEqual": "v4.59.0", "status": "affected", "version": "v4.0.0", "versionType": "semver"}, {"status": "affected", "version": "v2.0.15+"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<h2><span style=\"background-color: transparent;\"><b>Summary</b></span></h2><p><span style=\"background-color: transparent;\">A 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.</span></p><p><span style=\"background-color: transparent;\"><br></span></p><h3><span style=\"background-color: transparent;\"><b>Root cause</b></span></h3><p><span style=\"background-color: transparent;\">The </span><span style=\"background-color: rgb(233, 238, 246);\">commitHash</span><span style=\"background-color: transparent;\"> variable, derived from user input via the --commit-hash </span><span style=\"background-color: transparent;\">CLI argument, is interpolated directly into a shell command using template literals (e.g., &nbsp;<span style=\"background-color: rgb(233, 238, 246);\">execSync(`git show -s --format=%B ${commitHash}`)</span><span style=\"background-color: transparent;\">)</span></span><span style=\"background-color: transparent;\">. Shell metacharacters are interpreted by the shell, enabling command execution.</span></p><p><span style=\"background-color: transparent;\"><br></span></p><h3><span style=\"background-color: transparent;\"><b>Impact</b></span></h3><p><span style=\"background-color: transparent;\">This 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 </span></p><p><span style=\"background-color: transparent;\">--commit-hash</span><span style=\"background-color: transparent;\">&nbsp;parameter is populated from external, potentially untrusted sources. An attacker could exploit this to:</span></p><ul><li><span style=\"background-color: transparent;\">Run any shell command.</span></li><li>Exfiltrate environment variables.</li><li>Compromise the CI runner to install backdoors or modify build artifacts.</li></ul><br><h3><span style=\"background-color: transparent;\"><b>Credits</b></span></h3><p><span style=\"background-color: transparent;\"> Disclosed responsibly by </span><span style=\"background-color: rgb(255, 255, 255);\">kny4hacker.</span></p><p><span style=\"background-color: rgb(255, 255, 255);\"><br></span></p><h3>Mitigation<br></h3><ul><li><span style=\"background-color: transparent;\">Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher.</span></li><li>Wrangler v3 users are requested to upgrade to <span style=\"background-color: transparent;\">Wrangler v3.114.17 or higher.</span></li><li>Users on Wrangler v2 (EOL) should upgrade to a supported major version.</li></ul><br><br>"}], "value": "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., \u00a0execSync(`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\u00a0parameter 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."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 7.7, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "shortName": "cloudflare", "dateUpdated": "2026-01-20T22:58:05.212Z"}, "references": [{"url": "https://github.com/cloudflare/workers-sdk"}], "source": {"discovery": "UNKNOWN"}, "title": "OS Command Injection in `wrangler pages deploy`", "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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., \u00a0execSync(`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\u00a0parameter 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."}], "id": "CVE-2026-0933", "lastModified": "2026-01-20T23:16:06.043", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@cloudflare.com", "type": "Secondary"}]}, "published": "2026-01-20T23:16:06.043", "references": [{"source": "cna@cloudflare.com", "url": "https://github.com/cloudflare/workers-sdk"}], "sourceIdentifier": "cna@cloudflare.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "cna@cloudflare.com", "type": "Secondary"}]}

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