{"answers":{"affected":"4 open source packages ship an affected version, including electron. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-4076 in the wild and no public exploit code.","fix":"Upgrade electron to a fixed version for your release line: 7.2.4 or 8.2.4.","what":"CVE-2020-4076 is a high-severity vulnerability in Electronjs Electron, published on 7 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-4076 and fix it if it is affected.\n\nWhat it is: CVE-2020-4076 is a high-severity vulnerability in Electronjs Electron, published on 7 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-4076 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- electron (npm): affected all versions; fixed in 7.2.4\n- electron (npm): affected all versions; fixed in 7.2.4\n- electron (npm): affected from 8.0.0; fixed in 8.2.4\n- electron (npm): affected from 8.0.0; fixed in 8.2.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-4076/ (Markdown: https://insights.sbomify.com/CVE-2020-4076/index.md)","id":"CVE-2020-4076","markdown":"https://insights.sbomify.com/CVE-2020-4076/index.md","name":"CVE-2020-4076","record":{"aliases":["GHSA-m93v-9qjc-3g79"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Electron framework","requires_auth":"none","summary":"Attackers can bypass context isolation in Electron apps to execute privileged actions from the renderer process, requiring an upgrade to patched versions.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"electron","vendor":"electronjs"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-501","name":"Trust Boundary Violation"}],"description":"In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Context isolation bypass via leaked cross-context objects in Electron","id":"CVE-2020-4076","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"electronjs:electron","products":["electronjs:electron"],"type":"security_feature_bypass","year":"2020"},"n_packages":4,"n_references":2,"next":{"headline":"Context isolation bypass via contextBridge in Electron","id":"CVE-2020-4077"},"packages":[{"ecosystem":"npm","fixed":["7.2.4"],"introduced":["0"],"last_affected":[],"package":"electron","purl":null,"source":"GHSA-m93v-9qjc-3g79"},{"ecosystem":"npm","fixed":["7.2.4"],"introduced":["0"],"last_affected":[],"package":"electron","purl":"pkg:npm/electron","source":"GHSA-m93v-9qjc-3g79"},{"ecosystem":"npm","fixed":["8.2.4"],"introduced":["8.0.0"],"last_affected":[],"package":"electron","purl":null,"source":"GHSA-m93v-9qjc-3g79"},{"ecosystem":"npm","fixed":["8.2.4"],"introduced":["8.0.0"],"last_affected":[],"package":"electron","purl":"pkg:npm/electron","source":"GHSA-m93v-9qjc-3g79"}],"prev":{"headline":"Arbitrary file read via window-open IPC in Electron","id":"CVE-2020-4075"},"products":["electron"],"published":"2020-07-07","related":[{"cvss_score":9.8,"headline":"Chromium Remote Code Execution in electron","id":"CVE-2017-16151","kev_date_added":null,"published":"2018-06-07"},{"cvss_score":8.8,"headline":"Electron protocol handler browser vulnerable to Command Injection","id":"CVE-2018-1000118","kev_date_added":null,"published":"2018-03-07"},{"cvss_score":8.4,"headline":"Electron: Context Isolation bypass via contextBridge VideoFrame transfer","id":"CVE-2026-34780","kev_date_added":null,"published":"2026-04-04"},{"cvss_score":8.3,"headline":"Electron: \u003cwebview\u003e can enable Node.js integration in Web Workers despite embedder restrictions","id":"CVE-2026-102676","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.2,"headline":"Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab","id":"CVE-2026-102673","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.2,"headline":"Electron: Windows opened from a sandboxed top-level document do not inherit its sandbox restrictions","id":"CVE-2026-102674","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.1,"headline":"Electron: Use-after-free in offscreen child window paint callback","id":"CVE-2026-34774","kev_date_added":null,"published":"2026-04-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["electron"]},"summary":"Attackers can bypass context isolation in Electron apps to execute privileged actions from the renderer process, requiring an upgrade to patched versions.","url":"https://insights.sbomify.com/CVE-2020-4076/"}