What is CVE-2018-1317?

CVE-2018-1317 is a high-severity vulnerability in Apache Zeppelin, classified under Improper Authentication. CVSS score: 8.8/10. Published 2019-04-23.

How severe is CVE-2018-1317?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Apache Zeppelin

CVE-2018-1317

In Apache Zeppelin prior to 0.8.0 the cron scheduler was enabled by default and could allow users to run paragraphs as other users without authentication.

Vulnerability class: Broken Authentication

Published 2019-04-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.046 (91.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000

Affected products

Apache Zeppelin
Apache Software Foundation Zeppelin — versions prior to 0.8.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

lists.apache.org/thread.html/ff6b995a5a3ba8db4d6b14b4d9dd487e7bf2e3bdd5b375b64a… (mailing-list)
www.openwall.com/lists/oss-security/2019/04/23/1 (mailing-list, Mailing List, Third Party Advisory, Release Notes)
zeppelin.apache.org/releases/zeppelin-release-0.8.0.html (Release Notes, Vendor Advisory)
www.securityfocus.com/bid/108047 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-1317?: CVE-2018-1317 is a high-severity vulnerability in Apache Zeppelin, classified under Improper Authentication. CVSS score: 8.8/10. Published 2019-04-23.
How severe is CVE-2018-1317?: High severity. CVSS v3 base score is 8.8 out of 10.