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Fencer Intel
medium 5.4

CVE-2022-39348 json

Twisted vulnerable to NameVirtualHost Host header injection

published 4y ago modified 4mo ago also GHSA-vg46-2rrj-3647 , PYSEC-2026-1055 , EUVD-2022-7164

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

Twisted is an event-based framework for internet applications. Started with version 0.9.4, when the host header does not match a configured host `twisted.web.vhost.NameVirtualHost` will return a `NoResource` resource which renders the Host header unescaped into the 404 response allowing HTML and script injection. In practice this should be very difficult to exploit as being able to modify the Host header of a normal HTTP request implies that one is already in a privileged position. This issue was fixed in version 22.10.0rc1. There are no known workarounds.

Patch / fix

  • pypi twisted 22.10.0rc1
  • twisted twisted 22.10.0
  • twisted Debian 14, Debian 13, Debian 12 22.4.0-4

debian advisories DEBIAN-CVE-2022-39348

  • twisted Ubuntu 20.04 LTS 18.9.0-11ubuntu0.20.04.3
  • twisted Ubuntu 22.04 LTS 22.1.0-2ubuntu2.4

ubuntu advisories UBUNTU-CVE-2022-39348

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-Twisted SLE Module for Web and Scripting 12, OpenStack Cloud Crowbar 9, OpenStack Cloud Crowbar 8 +3 more 15.2.1-9.23.1
  • python-Twisted SLE Module for Server Applications 15 SP3, SLE Module for Package Hub 15 SP3, openSUSE Leap 15.4 +1 more 19.10.0-150200.3.18.1
  • python-Twisted SLE Module for Server Applications 15 SP4, openSUSE Leap 15.4 22.2.0-150400.5.7.1

suse advisories SUSE-SU-2022:4074-1SUSE-SU-2022:4057-1SUSE-SU-2022:4000-1

  • python-Twisted openSUSE Tumbleweed 22.10.0-1.1

opensuse advisories openSUSE-SU-2024:12474-1

  • python-twisted CBL-Mariner 2.0 22.10.0-2

azure linux advisories AZL-11357

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-39348 updated cvss 5.4

python-twisted: NameVirtualHost Host header injection

  • Red Hat Ansible Automation Platform 1.2 twisted[tls] Red Hat Ansible Automation Platform 2 twisted[tls]
    affected: no fix available
  • Red Hat Ceph Storage 3 python-twisted-core Red Hat Enterprise Linux 6 python-twisted, python-twisted-web, python-twisted-core, python-twisted-lore, python-twisted-mail, python-twisted-news, +5 more Red Hat Enterprise Linux 7 python-twisted-web, python-twisted-core, python-twisted-words Red Hat OpenStack Platform 13 (Queens) python-twisted
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 16.1 python-twisted, python3-twisted Red Hat OpenStack Platform 16.2 python-twisted, python3-twisted
    affected: no fix available “Fix deferred”
  • Red Hat Satellite 6 python-twisted, python2-twisted, python-twisted-web, python-twisted-core
    affected: no fix planned “Will not fix”
  • Red Hat Storage 3 python-twisted-core
    affected: no fix planned “Out of support scope”
  • Red Hat Service Telemetry Framework 1.3 for RHEL 8 python-twisted
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/twisted/twisted/security/advisories/GHSA-vg46-2rrj-3647 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
OSV 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
pypi twisted
>=0.9.4, <22.10.0rc1
22.10.0rc1

Affected products

  • twisted twisted

Classification

Weakness
  • CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

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