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CVE Record

CVE-2021-43959: Affected versions of Atlassian Jira Service Management Server and Data Center allow authenticated remote at...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Atlassian Jira Service Management Server/Data Center had an authenticated SSRF in JSM Insight CSV import. A logged-in attacker could make the server reach internal network resources. In cloud environments such as Amazon EC2, the CVE notes this could expose metadata containing credentials or other confidential information.

Executive priority

Prioritize remediation for internet-accessible or cloud-hosted Jira Service Management environments. The known requirement for authentication lowers broad exposure, but potential access to internal resources and cloud credentials makes affected production systems important to fix quickly.

Technical view

The vulnerable component is the CSV importing feature of JSM Insight. Affected releases are before 4.13.20, 4.14.0 before 4.20.8, and 4.21.0 before 4.22.2. The source describes authenticated remote SSRF against internal resources; no CVSS, CWE, or exploit mechanics are provided.

Likely exposure

Exposure is limited to organizations running affected Jira Service Management Server or Data Center versions with authenticated access to JSM Insight CSV import. Cloud-hosted instances may face higher business risk if metadata services or internal services are reachable from the Jira server.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires authentication and access to the vulnerable import feature. The cited impact is internal-resource access, including possible EC2 metadata exposure.

Researcher notes

Evidence is limited to the CVE description and Atlassian issue reference in the source bundle. No CVSS vector, CWE, proof-of-concept, or KEV status is provided. Treat exploitability details as unconfirmed beyond authenticated SSRF in JSM Insight CSV import.

Mitigation direction

  • Upgrade to 4.13.20, 4.20.8, 4.22.2, or later applicable fixed versions.
  • Review Atlassian advisory JSDSERVER-11898 for product-specific remediation guidance.
  • Restrict JSM Insight CSV import access to trusted users until remediation is complete.
  • Harden cloud metadata access and internal egress from Jira hosts where feasible.

Validation and detection

  • Inventory Jira Service Management Server and Data Center versions.
  • Confirm whether JSM Insight and CSV import are available to authenticated users.
  • Check whether deployed versions fall before the fixed version ranges.
  • Review logs for unusual CSV import activity or unexpected internal-resource requests.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Cloud metadata behavior lookup

The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-43959 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AtlassianJira Service Management Serverunspecified, 4.14.0, unspecified, 4.21.0, unspecifiedListed
AtlassianJira Service Management Data Centerunspecified, 4.14.0, unspecified, 4.21.0, unspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.