{"cve":"CVE-2023-7080","nvd":{"published":"2023-12-29T12:15:47.970","modified":"2026-06-17T06:52:01.220","status":"Modified","description":"The V8 inspector intentionally allows arbitrary code execution within the Workers sandbox for debugging. wrangler dev would previously start an inspector server listening on all network interfaces. This would allow an attacker on the local network to connect to the inspector and run arbitrary code. Additionally, the inspector server did not validate Origin/Host headers, granting an attacker that can trick any user on the local network into opening a malicious website the ability to run code. If wrangler dev --remote was being used, an attacker could access production resources if they were bound to the worker.\n\nThis issue was fixed in wrangler@3.19.0 and wrangler@2.20.2. Whilst wrangler dev's inspector server listens on local interfaces by default as of wrangler@3.16.0, an  SSRF vulnerability in miniflare https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-fwvg-2739-22v7  (CVE-2023-7078) allowed access from the local network until wrangler@3.18.0. wrangler@3.19.0 and wrangler@2.20.2 introduced validation for the Origin/Host headers.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.0},"cwes":["CWE-269"],"references":["https://github.com/cloudflare/workers-sdk/issues/4430","https://github.com/cloudflare/workers-sdk/pull/4437","https://github.com/cloudflare/workers-sdk/pull/4535","https://github.com/cloudflare/workers-sdk/pull/4550","https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf"],"products":["cloudflare:wrangler"],"source":"nvd","synced_at":"2026-10-19T21:43:38.875533635+00:00"},"epss":{"cve":"CVE-2023-7080","score":0.0063,"percentile":0.50183,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f8mp-x433-5wpf","url":"https://osv.dev/vulnerability/GHSA-f8mp-x433-5wpf","summary":"Arbitrary remote code execution within `wrangler dev` Workers sandbox","modified":"2026-07-08T06:53:13.037436470Z","packages":[{"ecosystem":"npm","name":"wrangler","purl":"pkg:npm/wrangler","ranges":[">=3.0.0 <3.19.0"],"fixed":["3.19.0"]},{"ecosystem":"npm","name":"wrangler","purl":"pkg:npm/wrangler","ranges":[">=2.0.0 <2.20.2"],"fixed":["2.20.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}