CVE-2026-0933

{"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": "2026-01-23T21:54:58.842Z"}, "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"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-01-23T18:58:09.879547Z", "id": "CVE-2026-0933", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-23T21:54:58.842Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-0933", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-01-23T18:58:09.879547Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-23T19:00:41.854Z"}}], "cna": {"title": "OS Command Injection in `wrangler pages deploy`", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/cloudflare/workers-sdk", "vendor": "Cloudflare", "product": "Wrangler", "versions": [{"status": "affected", "version": "v3.0.0", "versionType": "semver", "lessThanOrEqual": "v3.114.16"}, {"status": "affected", "version": "v4.0.0", "versionType": "semver", "lessThanOrEqual": "v4.59.0"}, {"status": "affected", "version": "v2.0.15+"}], "packageName": "Wrangler", "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/cloudflare/workers-sdk"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "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.", "supportingMedia": [{"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>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "shortName": "cloudflare", "dateUpdated": "2026-01-20T22:58:05.212Z"}}}, "cveMetadata": {"cveId": "CVE-2026-0933", "state": "PUBLISHED", "dateUpdated": "2026-01-23T21:54:58.842Z", "dateReserved": "2026-01-14T08:27:27.244Z", "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "datePublished": "2026-01-20T22:58:05.212Z", "assignerShortName": "cloudflare"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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+"}]}], "source": "cna@cloudflare.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "C22AB9BD-AA08-4F21-9F00-EE077888827F", "versionEndExcluding": "3.114.17", "versionStartIncluding": "2.0.15", "vulnerable": true}, {"criteria": "cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "FDB2DBCA-953B-4E8E-A8D3-C978C083C1A2", "versionEndExcluding": "4.59.1", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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."}, {"lang": "es", "value": "Resumen\nSe ha encontrado una vulnerabilidad de inyecci\u00f3n de comandos (CWE-78) que existe en el comando 'wrangler pages deploy'. El problema ocurre porque el par\u00e1metro --commit-hash se pasa directamente a un comando de shell sin la validaci\u00f3n o sanitizaci\u00f3n adecuadas, permitiendo a un atacante con control de --commit-hash ejecutar comandos arbitrarios en el sistema que ejecuta Wrangler.\n\nCausa ra\u00edz\nLa variable commitHash, derivada de la entrada del usuario a trav\u00e9s del argumento CLI --commit-hash, se interpola directamente en un comando de shell usando literales de plantilla (p. ej., execSync('git show -s --format=%B ${commitHash}')). Los metacaracteres de shell son interpretados por el shell, lo que permite la ejecuci\u00f3n de comandos.\n\nImpacto\nEsta vulnerabilidad es generalmente dif\u00edcil de exploit, ya que requiere que --commit-hash est\u00e9 controlado por el atacante. La vulnerabilidad afecta principalmente a entornos CI/CD donde 'wrangler pages deploy' se utiliza en pipelines automatizados y el par\u00e1metro --commit-hash se rellena desde fuentes externas, potencialmente no confiables. Un atacante podr\u00eda exploit esto para:\n\n * Ejecutar cualquier comando de shell.\n * Exfiltrar variables de entorno.\n * Comprometer el ejecutor de CI para instalar puertas traseras o modificar artefactos de compilaci\u00f3n.\n\nCr\u00e9ditos\nDivulgado de forma responsable por kny4hacker.\n\nMitigaci\u00f3n\n * Se solicita a los usuarios de Wrangler v4 que actualicen a Wrangler v4.59.1 o superior.\n * Se solicita a los usuarios de Wrangler v3 que actualicen a Wrangler v3.114.17 o superior.\n * Los usuarios de Wrangler v2 (EOL) deben actualizar a una versi\u00f3n principal compatible."}], "id": "CVE-2026-0933", "lastModified": "2026-06-17T10:11:39.087", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}], "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-0933", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-01-23T18:58:09.879547Z", "version": "2.0.3"}}]}, "published": "2026-01-20T23:16:06.043", "references": [{"source": "cna@cloudflare.com", "tags": ["Product"], "url": "https://github.com/cloudflare/workers-sdk"}], "sourceIdentifier": "cna@cloudflare.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "cna@cloudflare.com", "type": "Secondary"}]}

{}

{"created": "2026-01-21T11:18:57.932050+00:00", "updated": "2026-06-18T05:45:02.580127+00:00", "vendors": ["cloudflare", "cloudflare$PRODUCT$wrangler"]}