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Fencer Intel
medium 6.1

CVE-2020-35678 json

Open Redirect in autobahn

published 5y ago modified 4mo ago also GHSA-gwp7-vqr5-h33h , PYSEC-2020-25 , EUVD-2020-0049

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

Autobahn|Python before 20.12.3 allows redirect header injection.

Patch / fix

  • pypi autobahn 20.12.3
  • crossbar autobahn 20.12.3
  • python-autobahn Debian 14, Debian 13, Debian 12 17.10.1+dfsg1-7

debian advisories DEBIAN-CVE-2020-35678

  • python-autobahn openSUSE Tumbleweed 26.7.1-1.1
  • python-autobahn openSUSE Tumbleweed 21.3.1-1.3
  • python-autobahn openSUSE Tumbleweed 23.6.2-3.1
  • python-autobahn Package Hub 15 SP1 17.10.1-bp151.4.3.1
  • python-autobahn Package Hub 15 SP2 17.10.1-bp152.4.3.1
  • python-autobahn openSUSE Leap 15.2 17.10.1-lp152.4.3.1
  • python-autobahn openSUSE Leap 15.1 17.10.1-lp151.3.3.1

opensuse advisories openSUSE-SU-2026:11780-1openSUSE-SU-2024:11216-1openSUSE-SU-2024:13902-1openSUSE-SU-2021:0180-1openSUSE-SU-2021:0176-1openSUSE-SU-2021:0152-1

  • python-autobahn Arch Linux 20.12.3-1

arch linux advisories AVG-1384

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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-2020-35678 updated cvss 4.1

python-autobahn: allows redirect header injection

  • Red Hat Ansible Automation Platform 1.2 autobahn
    affected: workaround, no fix available
  • Red Hat OpenStack Platform 10 (Newton) python-autobahn
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) python-autobahn Red Hat OpenStack Platform 16.1 python3-autobahn Red Hat Quay 3 quay
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ansible Tower 3.6 for RHEL 7 ansible-tower-36/ansible-tower 3.6.7-1
    fixed: vendor fix RHSA-2021:0778
  • Red Hat Ansible Tower 3.7 for RHEL 7 ansible-tower-37/ansible-tower-rhel7 3.7.5-1
    fixed: vendor fix RHSA-2021:0779
  • Red Hat Ansible Tower 3.8 for RHEL 7 ansible-tower-38/ansible-tower-rhel7 3.8.2-1, ansible-tower-38/ansible-runner-rhel7 1.4.7-1
    fixed: vendor fix RHSA-2021:0780

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

Exploit prediction

1.44% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
pypi autobahn
<20.12.3
20.12.3

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site

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.