CVE-2021-43959

Severity: medium (CVSS 5.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-07-26 · updated 2026-06-17
Weakness: CWE-918

Description

Affected versions of Atlassian Jira Service Management Server and Data Center allow authenticated remote attackers to access the content of internal network resources via a Server-Side Request Forgery (SSRF) vulnerability in the CSV importing feature of JSM Insight. When running in an environment like Amazon EC2, this flaw may be used to access to a metadata resource that provides access credentials and other potentially confidential information. The affected versions are before version 4.13.20, from version 4.14.0 before 4.20.8, and from version 4.21.0 before 4.22.2.

Affected products

Atlassian Jira Service Desk Server: before 4.13.20 — fixed in 4.13.20
Atlassian Jira Service Management: from 4.14.0 before 4.20.8; from 4.21.0 before 4.22.2 — fixed in 4.20.8, 4.22.2

How to fix

Upgrade to a fixed version: Atlassian Jira Service Desk Server 4.13.20; Atlassian Jira Service Management 4.20.8, 4.22.2. Check the vendor advisory for mitigations.

References

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