{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-34769", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-30T19:54:55.555Z", "datePublished": "2026-04-03T23:33:55.952Z", "dateUpdated": "2026-04-08T03:55:35.188Z"}, "containers": {"cna": {"title": "Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference", "problemTypes": [{"descriptions": [{"cweId": "CWE-88", "lang": "en", "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-912", "lang": "en", "description": "CWE-912: Hidden Functionality", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/electron/electron/security/advisories/GHSA-9wfr-w7mm-pc7f", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/electron/electron/security/advisories/GHSA-9wfr-w7mm-pc7f"}], "affected": [{"vendor": "electron", "product": "electron", "versions": [{"version": "< 38.8.6", "status": "affected"}, {"version": ">= 39.0.0-alpha.1, < 39.8.0", "status": "affected"}, {"version": ">= 40.0.0-alpha.1, < 40.7.0", "status": "affected"}, {"version": ">= 41.0.0-alpha.1, < 41.0.0-beta.8", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-03T23:33:55.952Z"}, "descriptions": [{"lang": "en", "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, an undocumented commandLineSwitches webPreference allowed arbitrary switches to be appended to the renderer process command line. Apps that construct webPreferences by spreading untrusted configuration objects may inadvertently allow an attacker to inject switches that disable renderer sandboxing or web security controls. Apps are only affected if they construct webPreferences from external or untrusted input without an allowlist. Apps that use a fixed, hardcoded webPreferences object are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8."}], "source": {"advisory": "GHSA-9wfr-w7mm-pc7f", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-07T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-34769"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-08T03:55:35.188Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, an undocumented commandLineSwitches webPreference allowed arbitrary switches to be appended to the renderer process command line. Apps that construct webPreferences by spreading untrusted configuration objects may inadvertently allow an attacker to inject switches that disable renderer sandboxing or web security controls. Apps are only affected if they construct webPreferences from external or untrusted input without an allowlist. Apps that use a fixed, hardcoded webPreferences object are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8."}], "id": "CVE-2026-34769", "lastModified": "2026-04-07T13:20:55.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-04T00:16:17.657", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/electron/electron/security/advisories/GHSA-9wfr-w7mm-pc7f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-88"}, {"lang": "en", "value": "CWE-912"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "Electron: Electron: Arbitrary code execution and security bypass via undocumented command-line switches", "id": "2455004", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455004"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-88", "details": ["Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, an undocumented commandLineSwitches webPreference allowed arbitrary switches to be appended to the renderer process command line. Apps that construct webPreferences by spreading untrusted configuration objects may inadvertently allow an attacker to inject switches that disable renderer sandboxing or web security controls. Apps are only affected if they construct webPreferences from external or untrusted input without an allowlist. Apps that use a fixed, hardcoded webPreferences object are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.", "A flaw was found in Electron, a framework for building desktop applications. This vulnerability arises from an undocumented `commandLineSwitches` webPreference that allows arbitrary command-line switches to be appended to the renderer process. A remote attacker could exploit this by providing malicious input to applications that construct `webPreferences` from untrusted sources. Successful exploitation could disable critical security controls like sandboxing, potentially leading to arbitrary code execution, privilege escalation, or sensitive information disclosure."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-34769", "package_state": [{"cpe": "cpe:/a:redhat:podman_desktop:1", "fix_state": "Affected", "package_name": "podman-desktop-macos-1-0", "product_name": "Red Hat Build of Podman Desktop"}, {"cpe": "cpe:/a:redhat:podman_desktop:1", "fix_state": "Affected", "package_name": "podman-desktop-windows-1-0", "product_name": "Red Hat Build of Podman Desktop"}, {"cpe": "cpe:/a:redhat:podman_desktop:0", "fix_state": "Affected", "package_name": "rhdesktop/rh-podman-desktop-ext-openshift-local-rhel10", "product_name": "Red Hat Build of Podman Desktop - Tech Preview"}], "public_date": "2026-04-03T23:33:55Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-34769\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-34769\nhttps://github.com/electron/electron/security/advisories/GHSA-9wfr-w7mm-pc7f"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,38.8.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[39.0.0-alpha.1,39.8.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[40.0.0-alpha.1,40.7.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[41.0.0-alpha.1,41.0.0-beta.8)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "electron", "source": "cna", "vendor": "electron"}, "product": "electron", "vendor": "electron"}], "analysis": {"en": {"generated_at": "2026-04-04T02:24:45.063155+00:00", "value": {"mitigation_remediation": ["Upgrade Electron to version 38.8.6, 39.8.0, 40.7.0, 41.0.0\u2011beta.8 or later.", "Ensure webPreferences objects are constructed only from trusted data and do not merge unvalidated configuration.", "If dynamic preference construction is required, implement an allowlist of permissible command line switches to filter input.", "Audit and sanitize all configuration sources used by the application to prevent accidental injection of unsafe switches."], "summary": {"action": "Apply Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Electron releases prior to 38.8.6, 39.8.0, 40.7.0, and 41.0.0\u2011beta.8. Applications built with those Electron versions that merge untrusted or externally supplied objects into webPreferences are impacted. Hard\u2011coded or strictly validated webPreferences configurations are not affected.", "description_and_impact": "Electron exposes an undocumented webPreferences property named commandLineSwitches that allows arbitrary renderer command line switches to be appended. If an attacker can supply any configuration object that is spread into webPreferences, they can inject switches that disable renderer sandboxing and web security controls. This is a form of command\u2011line injection (CWE\u201188) and can lead to loss of sandbox protection, giving an attacker the possibility of executing arbitrary code in the renderer process or exploiting other renderer vulnerabilities.", "risk_and_exploitability": "The CVSS score of 7.8 indicates a high risk level. EPSS data is not available, and the flaw is not listed in the CISA KEV catalog. An attacker must be able to supply an untrusted configuration to an Electron application, which typically implies a local or compromised user flow rather than a network\u2011based attack. Once the untrusted configuration is introduced, the injected switches can remove sandbox protection, creating a foothold for code execution."}}}}, "created": "2026-04-06T21:21:44.667444+00:00", "updated": "2026-04-06T22:21:22.241737+00:00", "vendors": ["electron", "electron$PRODUCT$electron"]}