How does CVE-2021-26085 affect Atlassian Confluence Server?

CVE-2021-26085 allows remote attackers to view restricted resources in Atlassian Confluence Server.

Which versions of Atlassian Confluence Server are affected by CVE-2021-26085?

Affected versions of Atlassian Confluence Server are before version 7.4.10 and from version 7.5.0 before 7.12.3.

What is the severity of CVE-2021-26085?

CVE-2021-26085 has a severity rating of medium (5.3).

How can I fix the CVE-2021-26085 vulnerability in Atlassian Confluence Server?

To fix the CVE-2021-26085 vulnerability, you should update Atlassian Confluence Server to version 7.4.10 or later, or between version 7.5.0 and 7.12.3.

Vulnerability/
CVE-2021-26085

Exploited

medium

5.3

CWE

425

3/8/2021

8/8/2023

CVE-2021-26085: Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability

Q: What is CVE-2021-26085?

CVE-2021-26085 refers to the Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability.

First published: Tue Aug 03 2021(Updated: )

Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint.

Credit: security@atlassian.com security@atlassian.com

Affected Software	Affected Version	How to fix
Atlassian Confluence Data Center	<7.4.10
Atlassian Confluence Data Center	>=7.5.0<7.12.3
Atlassian Confluence Server	<7.4.10
Atlassian Confluence Server	>=7.5.0<7.12.3

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Frequently Asked Questions

What is CVE-2021-26085?
CVE-2021-26085 refers to the Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability.
How does CVE-2021-26085 affect Atlassian Confluence Server?
CVE-2021-26085 allows remote attackers to view restricted resources in Atlassian Confluence Server.
Which versions of Atlassian Confluence Server are affected by CVE-2021-26085?
Affected versions of Atlassian Confluence Server are before version 7.4.10 and from version 7.5.0 before 7.12.3.
What is the severity of CVE-2021-26085?
CVE-2021-26085 has a severity rating of medium (5.3).
How can I fix the CVE-2021-26085 vulnerability in Atlassian Confluence Server?
To fix the CVE-2021-26085 vulnerability, you should update Atlassian Confluence Server to version 7.4.10 or later, or between version 7.5.0 and 7.12.3.

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collector/nvd-api
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vendor/atlassian
canonical/atlassian confluence server
canonical/atlassian confluence data center
version/atlassian confluence data center/7.5.0
version/atlassian confluence server/7.5.0

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