Authentication Bypass Affecting mitmproxy package, versions <12.2.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-WOLFILATEST-MITMPROXY-15878617
- published3 Apr 2026
- disclosed6 Feb 2025
Introduced: 6 Feb 2025
CVE-2025-23217 (opens in a new tab)How to fix?
Upgrade Wolfi mitmproxy to version 12.2.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mitmproxy package and not the mitmproxy package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
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.