Security readout for executives and security teams
Plain-English summary
CVE-2021-43951 is an authenticated information disclosure issue in Atlassian Jira Service Management Server and Data Center. A logged-in remote attacker could view object import configuration details through the Create Object type mapping feature. The sources identify affected versions as before 4.21.0.
Executive priority
Treat this as a medium-priority remediation unless local data exposure would be especially sensitive. It is not sourced as actively exploited, but Jira configuration disclosure can support follow-on attacks or reveal operational details.
Technical view
The vulnerability affects Jira Service Management Server and Data Center before 4.21.0. It is an information disclosure flaw tied to Create Object type mapping. The public source bundle does not provide CVSS, CWE, detailed prerequisites beyond authentication, or the exact configuration fields disclosed.
Likely exposure
Exposure is limited to Atlassian Jira Service Management Server or Data Center deployments running versions before 4.21.0. Risk depends on who can authenticate to the instance and whether exposed object import configuration details could reveal sensitive operational or integration information.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The issue requires authentication, which lowers broad internet drive-by risk, but compromised or low-privilege accounts could still make disclosure meaningful in enterprise Jira environments.
Researcher notes
Key gaps are CVSS, CWE, exploit detail, and precise disclosed fields. Validate only within authorized environments and focus on version exposure, authentication scope, and whether object import configuration data contains secrets, integration metadata, or sensitive business mappings.
Mitigation direction
- Upgrade Jira Service Management Server or Data Center to 4.21.0 or later.
- Review Atlassian issue JSDSERVER-10984 for vendor-specific guidance.
- Restrict Jira Service Management access to trusted users while upgrading.
- Audit accounts and permissions for users with access to object mapping features.
Validation and detection
- Inventory Jira Service Management Server and Data Center versions.
- Confirm no deployment remains below version 4.21.0.
- Review access controls for authenticated users on affected project features.
- Check logs for unusual authenticated access to object type mapping workflows.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-43951 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/JSDSERVER-10984CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.