CVE-2021-26069

Name: CVE-2021-26069
Creator: NVD / NIST
Published: 2021-03-22T05:15:12.057+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 2.51%

Last modified Jun 17, 2026

CVE-2021-26069 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to download temporary files and enumerate project keys via an Information Disclosure vulnerability in the /rest/api/1.0/issues/{id}/ActionsAndOperations API endpoint. The affected versions are before version 8.5.11, from version 8.6.0 before 8.13.3, and from version 8.14.0 before 8.15.0.. EPSS estimates a 2.51% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to download temporary files and enumerate project keys via an Information Disclosure vulnerability in the /rest/api/1.0/issues/{id}/ActionsAndOperations API endpoint. The affected versions are before version 8.5.11, from version 8.6.0 before 8.13.3, and from version 8.14.0 before 8.15.0.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

2.51%

82.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Atlassian	Data Center	< 8.5.11
Atlassian	Data Center	>= 8.6.0, < 8.13.3
Atlassian	Jira	< 8.5.11
Atlassian	Jira Data Center	>= 8.14.0, < 8.15.0
Atlassian	Jira Server	>= 8.6.0, < 8.13.3
Atlassian	Jira Server	>= 8.14.0, < 8.15.0

References

https://jira.atlassian.com/browse/JRASERVER-72010Issue Tracking, Patch, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-72010Issue Tracking, Patch, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-26069?

How severe is CVE-2021-26069?

CVE-2021-26069 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.51% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26069?

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-2021-26069?

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

Scan your code now

Source: NVD / NIST