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medium·Product Based Web Vulnerabilities·Updated Jan 3, 2024

CVE-2021-26086 Scanner

CVE-2021-26086 scanner - Path Traversal vulnerability in Atlassian Jira Server

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsurl
CostFree
3k
Times Used
continuous scan runs
4.1k
Continuously Checked
assets under CS
1
Vulnerabilities Found
confirmed findings
References
🔴
CISA Known Exploited Vulnerability
This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.
CVECVE-2021-26086
5.3
CVSSmedium
Exploitable remotely over the internet · no authentication required.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Jira Serverby Atlassian
AFFECTED< 8.5.14SAFE ✓≥ 8.5.14
Jira Data Centerby Atlassian
AFFECTED< 8.5.14SAFE ✓≥ 8.5.14
jira_serverby atlassian
AFFECTED< 8.5.14SAFE ✓≥ 8.5.14
jira_serverby atlassian
AFFECTED< 8.5.14SAFE ✓≥ 8.5.14
Updated Aug 19, 2026View on NVD →
Detail

Atlassian Jira Server is an enterprise project management software that is used by thousands of organizations across the globe. It provides teams with the ability to plan, track, and manage their projects in a collaborative manner. Jira Server has become an essential tool for businesses looking to streamline their project management, and it has received widespread adoption due to its powerful functionality and user-friendly interface.

However, the software is not immune to vulnerabilities, and recently, a critical vulnerability was discovered in the product that poses a significant threat to users' data: CVE-2021-26086. This vulnerability is a path traversal flaw that allows remote attackers to read specific files by exploiting a flaw in the /WEB-INF/web.xml endpoint. Attackers can use this vulnerability to access sensitive data, such as user credentials, session tokens, and other confidential information.

If CVE-2021-26086 is exploited, it can result in a data breach, data loss, or other serious security incidents. It can also lead to unauthorized access to confidential data, which can then be used for malicious purposes, such as identity theft, financial fraud, or corporate espionage.

In conclusion, for those who want to keep their digital assets safe and secure, it is essential to stay informed about potential vulnerabilities and threats. The s4e.io platform is an excellent resource for individuals and businesses looking to protect their digital assets. With its pro features, users can quickly and easily identify potential vulnerabilities in their systems and take action to mitigate the risk. Investing in the right tools to protect your digital assets is crucial to avoiding severe consequences, such as data theft, financial fraud, and reputational damage.

 

REFERENCES

 

Solution Advice

To protect against this vulnerability, Atlassian has released patches for the affected versions of the software. Organizations using Jira Server should install these updates as soon as possible to ensure that they are not exposed to the risk of cyber attacks. Additionally, here are some precautions that can be taken to mitigate the risk of this vulnerability:

  • Apply the latest security patches
  • Implement access controls and monitor network traffic
  • Limit user privileges and remove any unnecessary access
  • Use firewalls and other security measures to enhance your security posture

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