CVE-2021-26070

Name: CVE-2021-26070
Creator: NVD / NIST
Published: 2021-03-22T05:15:13.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.96%

Last modified Jun 17, 2026

CVE-2021-26070 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Affected versions of Atlassian Jira Server and Data Center allow remote attackers to evade behind-the-firewall protection of app-linked resources via a Broken Authentication vulnerability in the `makeRequest` gadget resource. The affected versions are before version 8.13.3, and from version 8.14.0 before 8.14.1.. EPSS estimates a 1.96% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to evade behind-the-firewall protection of app-linked resources via a Broken Authentication vulnerability in the `makeRequest` gadget resource. The affected versions are before version 8.13.3, and from version 8.14.0 before 8.14.1.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

1.96%

77.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Atlassian	Data Center	< 8.13.3
Atlassian	Data Center	>= 8.14.0, < 8.14.1
Atlassian	Jira	< 8.13.3
Atlassian	Jira Server	>= 8.14.0, < 8.14.1

References

https://jira.atlassian.com/browse/JRASERVER-72029Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-72029Vendor Advisory

Timeline

Published: Mar 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26070?

How severe is CVE-2021-26070?

CVE-2021-26070 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26070?

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-2021-26070?

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

Scan your code now

Source: NVD / NIST