CVE-2019-20418

Name: CVE-2019-20418
Creator: NVD / NIST
Published: 2020-07-03T01:15:10.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2019-20418 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Affected versions of Atlassian Jira Server and Data Center allow remote attackers to prevent users from accessing the instance via an Application Denial of Service vulnerability in the /rendering/wiki endpoint. The affected versions are before version 8.8.0.. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to prevent users from accessing the instance via an Application Denial of Service vulnerability in the /rendering/wiki endpoint. The affected versions are before version 8.8.0.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.02%

59.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Atlassian	Jira	< 8.8.0
Atlassian	Jira Software Data Center	< 8.8.0

References

https://jira.atlassian.com/browse/JRASERVER-70943Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-70943Issue Tracking, Vendor Advisory

Timeline

Published: Jul 3, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20418?

How severe is CVE-2019-20418?

CVE-2019-20418 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20418?

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-2019-20418?

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

Scan your code now

Source: NVD / NIST