{"cve":"CVE-2025-23217","nvd":{"published":"2025-02-06T18:15:32.667","modified":"2026-06-17T08:52:43.410","status":"Deferred","description":"mitmproxy is a interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers and mitmweb is a web-based interface for mitmproxy. In mitmweb 11.1.1 and below, a malicious client can use mitmweb's proxy server (bound to `*:8080` by default) to access mitmweb's internal API (bound to `127.0.0.1:8081` by default). In other words, while the cannot access the API directly, they can access the API through the proxy. An attacker may be able to escalate this SSRF-style access to remote code execution. The mitmproxy and mitmdump tools are unaffected. Only mitmweb is affected. This vulnerability has been fixed in mitmproxy 11.1.2 and above. Users are advised to upgrade. There are no known workarounds for this vulnerability.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.2},"cvss_v3":null,"cwes":["CWE-288","CWE-441"],"references":["https://en.wikipedia.org/wiki/Server-side_request_forgery","https://github.com/mitmproxy/mitmproxy/blob/main/CHANGELOG.md#06-february-2025-mitmproxy-1112","https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-wg33-5h85-7q5p"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:59:18.731010617+00:00"},"epss":{"cve":"CVE-2025-23217","score":0.00872,"percentile":0.58879,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wg33-5h85-7q5p","url":"https://osv.dev/vulnerability/GHSA-wg33-5h85-7q5p","summary":"Mitmweb API Authentication Bypass Using Proxy Server","modified":"2026-09-10T03:50:06.196677106Z","packages":[{"ecosystem":"PyPI","name":"mitmproxy","purl":"pkg:pypi/mitmproxy","ranges":["<11.1.2"],"fixed":["11.1.2"]}]},{"id":"PYSEC-2026-1630","url":"https://osv.dev/vulnerability/PYSEC-2026-1630","summary":"Mitmweb API Authentication Bypass Using Proxy Server","modified":"2026-07-07T17:47:04.439204966Z","packages":[{"ecosystem":"PyPI","name":"mitmproxy","purl":"pkg:pypi/mitmproxy","ranges":["<11.1.2"],"fixed":["11.1.2"]}]}],"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."]}