What is CVE-2015-8466?

CVE-2015-8466 is a high-severity vulnerability in OpenStack Swift3, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2016-01-13.

How severe is CVE-2015-8466?

High severity. CVSS v3 base score is 7.4 out of 10.

Improper input validation in OpenStack Swift3

CVE-2015-8466

Swift3 before 1.9 allows remote attackers to conduct replay attacks via an Authorization request that lacks a Date header.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2016-01-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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

OpenStack Swift3
Fedoraproject Fedora — versions 23

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.debian.org/security/2016/dsa-3583 (vendor-advisory)
swiftstack.com/docs/admin/release.html
bugs.launchpad.net/swift3/+bug/1497424
github.com/openstack/swift3/blob/master/CHANGELOG (Patch)
lists.fedoraproject.org/pipermail/package-announce/2015-December/174374.html (vendor-advisory, Patch)

Frequently asked questions

What is CVE-2015-8466?: CVE-2015-8466 is a high-severity vulnerability in OpenStack Swift3, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2016-01-13.
How severe is CVE-2015-8466?: High severity. CVSS v3 base score is 7.4 out of 10.