mitmweb in mitmproxy v4.0.3 allows DNS Rebinding attacks, related to tools/web/app.py.
Priority MEDIUM 44CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
mitmweb in mitmproxy v4.0.3 allows DNS Rebinding attacks, related to tools/web/app.py.
Why it matters now
EPSS 0.03348 88th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mitmproxy (PyPI): 4.0.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | mitmproxy (PyPI) | before 4.0.4 | 4.0.4 | Patch available | GHSA-6m53-c78q-7qmg |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- mitmproxy (PyPI) Vendor— Affected before 4.0.4 Fixed in 4.0.4 Patch available GHSA-6m53-c78q-7qmg
Remediation
- Fix · GHSA-6m53-c78q-7qmg mitmproxy (PyPI) Fixed in 4.0.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-14505
- 2026-10-03 Alias added: GHSA-6m53-c78q-7qmg
References
Advisory 3
More Mitmproxy vulnerabilities
- TI-2022-08580 Insufficient Protection against HTTP Request Smuggling in mitmproxy CVSS 3.1CRITICAL 9.8
- TI-2021-16599 Lacking Protection against HTTP Request Smuggling in mitmproxy CVSS 3.1CRITICAL 9.8
- TI-2026-29342 ProxyAuth Addon LDAP Injection in mitmproxy CVSS 3.1MEDIUM 4.8
Sources
- CVE-2018-14505 · CVE Program
- CVE-2018-14505 · NVD
- FIRST EPSS
- GHSA-6m53-c78q-7qmg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences