What is CVE-2016-2102?

CVE-2016-2102 is a medium-severity vulnerability in Haproxy, classified under Improper Authentication. CVSS score: 5.3/10. Published 2017-08-22.

How severe is CVE-2016-2102?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Haproxy

CVE-2016-2102

HAProxy statistics in openstack-tripleo-image-elements are non-authenticated over the network.

Vulnerability class: Broken Authentication

Published 2017-08-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.020 (80.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Haproxy

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2016-2102?: CVE-2016-2102 is a medium-severity vulnerability in Haproxy, classified under Improper Authentication. CVSS score: 5.3/10. Published 2017-08-22.
How severe is CVE-2016-2102?: Medium severity. CVSS v3 base score is 5.3 out of 10.