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Fencer Intel
high 8.8

CVE-2018-14505 json

Mitmweb in mitmproxy allows DNS Rebinding attacks

published 8y ago modified 4mo ago also GHSA-6m53-c78q-7qmg , PYSEC-2018-56 , EUVD-2018-0100

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

mitmweb in mitmproxy v4.0.3 allows DNS Rebinding attacks, related to tools/web/app.py.

Patch / fix

  • pypi mitmproxy 4.0.4
  • mitmproxy Debian 14, Debian 12 3.0.4-1

debian advisories DEBIAN-CVE-2018-14505

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Exploit prediction

3.35% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/mitmproxy/mitmproxy/issues/3234 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi mitmproxy
<4.0.4
4.0.4

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.