CVE-2020-13929

Name: CVE-2020-13929
Creator: NVD / NIST
Published: 2021-09-02T17:15:07.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.03%

Last modified Jun 17, 2026

CVE-2020-13929 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Authentication bypass vulnerability in Apache Zeppelin allows an attacker to bypass Zeppelin authentication mechanism to act as another user. This issue affects Apache Zeppelin Apache Zeppelin version 0.9.0 and prior versions.. EPSS estimates a 3.03% chance of exploitation in the next 30 days.

Description

Authentication bypass vulnerability in Apache Zeppelin allows an attacker to bypass Zeppelin authentication mechanism to act as another user. This issue affects Apache Zeppelin Apache Zeppelin version 0.9.0 and prior versions.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

3.03%

85.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apache	Zeppelin	<= 0.9.0

References

http://www.openwall.com/lists/oss-security/2021/09/02/2Mailing List, Third Party Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r99529e175a7c1c9a26bd41a02802c8af7aa97319fe561874627eb999%40%3Cusers.zeppelin.apache.org%3E
https://security.gentoo.org/glsa/202311-04
http://www.openwall.com/lists/oss-security/2021/09/02/2Mailing List, Third Party Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3EMailing List, Vendor Advisory
https://lists.apache.org/thread.html/r99529e175a7c1c9a26bd41a02802c8af7aa97319fe561874627eb999%40%3Cusers.zeppelin.apache.org%3E
https://security.gentoo.org/glsa/202311-04

Timeline

Published: Sep 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13929?

How severe is CVE-2020-13929?

CVE-2020-13929 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.03% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13929?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-13929?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST