{"id":"CVE-2024-29019","aliases":["GHSA-5925-88xh-6h99","PYSEC-2026-1327"],"title":"ESPHome vulnerable to Authentication bypass via Cross site request forgery","summary":"ESPHome vulnerable to Authentication bypass via Cross site request forgery","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","vendor":"esphome","product":"esphome","ecosystem":"pip","affected":["esphome >= 2023.12.9, < 2024.3.0"],"patched":["esphome 2024.3.0"],"published":"2024-03-21","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-5925-88xh-6h99","references":[{"url":"https://github.com/esphome/esphome/security/advisories/GHSA-5925-88xh-6h99"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-29019"},{"url":"https://github.com/esphome/esphome/pull/6396"},{"url":"https://github.com/esphome/esphome/pull/6397"},{"url":"https://github.com/esphome/esphome/commit/c56c40cb824e34ed2b89ba1cb8a3a5eb31459c74"},{"url":"https://github.com/advisories/GHSA-9p43-hj5j-96h5"},{"url":"https://github.com/esphome/esphome"},{"url":"https://github.com/esphome/esphome/releases/tag/2024.3.0"}],"tags":["osv","pip"],"epss":0.00269,"epssPercentile":0.19259,"ingestedAt":"2026-07-08T18:25:45.825Z","slug":"CVE-2024-29019","body":"## Overview\n\n### Summary\nAPI endpoints in dashboard component of ESPHome version 2023.12.9 (command line installation) are vulnerable to Cross-Site Request Forgery (CSRF) allowing remote attackers to carry out attacks against a logged user of the dashboard to perform operations on configuration files (create, edit, delete).\n\n### Details\nIt is possible for a malicious actor to create a specifically crafted web page that triggers a cross site request against ESPHome, this allows bypassing the authentication for API calls on the platform.\n\n### PoC\nAn example of malicious web page that abuses this vulnerability:\n\n\n\n \n\t
\n \t\n\t
\n\n\t\n\n\t\n \n\n\nIn which an attacker creates and weaponizes \"poc.yaml\" config file containing a cookie exfiltration script and forces the payload triggering visiting the vulnerable page.\n\n\nExample of such script:\n\n\n\n### Impact\nThis vulnerability allows bypassing authentication on API calls accessing configuration file operations on the behalf of a logged user. In order to trigger the vulnerability, the victim must visit a weaponized page.\n\nIn addition to this, it is possible to chain this vulnerability with GHSA-9p43-hj5j-96h5 (as seen in the PoC) to obtain a complete takeover of the user account.\n\n\n\n## Affected packages\n\n- `esphome >= 2023.12.9, < 2024.3.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `esphome 2024.3.0`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}