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Fencer Vulns
medium 6.3

CVE-2016-8631 json

The OpenShift Enterprise 3 router does not properly sort routes when processing newly added routes.

published 2018-07-31 8 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9474

cvss
6.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

The OpenShift Enterprise 3 router does not properly sort routes when processing newly added routes. An attacker with access to create routes can potentially overwrite existing routes and redirect network traffic for other users to their own site.

Patch / fix

  • atomic-openshift openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-pod openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-node openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-tests openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-master openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-clients openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-sdn-ovs openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7
  • atomic-openshift-dockerregistry openshift 3.3 3.3.1.4-1.git.0.7c8657c.el7

red hat advisories RHSA-2016:2696

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-2016-8631 updated cvss 6.3

3: Router sometimes selects new routes over old routes when determining claimed hostnames

  • Red Hat OpenShift Container Platform 3.3 atomic-openshift 3.3.1.4-1.git.0.7c8657c.el7, atomic-openshift-pod 3.3.1.4-1.git.0.7c8657c.el7, atomic-openshift-node 3.3.1.4-1.git.0.7c8657c.el7, atomic-openshift-tests 3.3.1.4-1.git.0.7c8657c.el7, atomic-openshift-master 3.3.1.4-1.git.0.7c8657c.el7, atomic-openshift-clients 3.3.1.4-1.git.0.7c8657c.el7, +4 more
    fixed: vendor fix RHSA-2016:2696

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

1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 3.0 7.7 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N

Affected products

  • Red Hat Openshift Enterprise

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns 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.