CVE-2021-26086

Atlassian Jira Server and Data Center Path Traversal Vulnerability

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*SSVC

Descriptions

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.

Las versiones afectadas de Atlassian Jira Server y Data Center, permiten a atacantes remotos leer archivos particulares por medio de una vulnerabilidad de salto de ruta en el endpoint /WEB-INF/web.xml. Las versiones afectadas son anteriores a 8.5.14, desde versión 8.6.0 anteriores a 8.13.6, y desde versión 8.14.0 anteriores a 8.16.1.

Atlassian Jira Server/Data Center version 8.4.0 suffers from a limited remote file read vulnerability.

Atlassian Jira Server and Data Center contain a path traversal vulnerability that allows a remote attacker to read particular files in the /WEB-INF/web.xml endpoint.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-01-25 CVE Reserved
2021-08-16 CVE Published
2021-09-04 First Exploit
2024-11-12 Exploited in Wild
2024-11-13 CVE Updated
2024-12-03 KEV Due Date
2025-03-26 EPSS Updated

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://packetstorm.news/files/id/164405	2021-10-05
https://www.exploit-db.com/exploits/50380	2021-10-06
https://github.com/ColdFusionX/CVE-2021-26086	2021-10-12
https://github.com/Jeromeyoung/CVE-2021-26086	2021-09-04
http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-File-Read.html	2024-11-13

URL	Date	SRC

URL	Date	SRC
https://jira.atlassian.com/browse/JRASERVER-72695	2022-03-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Atlassian Search vendor "Atlassian"		Jira Data Center Search vendor "Atlassian" for product "Jira Data Center"				< 8.5.14 Search vendor "Atlassian" for product "Jira Data Center" and version " < 8.5.14"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Data Center Search vendor "Atlassian" for product "Jira Data Center"				>= 8.6.0 < 8.13.6 Search vendor "Atlassian" for product "Jira Data Center" and version " >= 8.6.0 < 8.13.6"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Data Center Search vendor "Atlassian" for product "Jira Data Center"				>= 8.14.0 < 8.16.1 Search vendor "Atlassian" for product "Jira Data Center" and version " >= 8.14.0 < 8.16.1"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Server Search vendor "Atlassian" for product "Jira Server"				< 8.5.14 Search vendor "Atlassian" for product "Jira Server" and version " < 8.5.14"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Server Search vendor "Atlassian" for product "Jira Server"				>= 8.6.0 < 8.13.6 Search vendor "Atlassian" for product "Jira Server" and version " >= 8.6.0 < 8.13.6"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Server Search vendor "Atlassian" for product "Jira Server"				>= 8.14.0 < 8.16.1 Search vendor "Atlassian" for product "Jira Server" and version " >= 8.14.0 < 8.16.1"		-		Affected