Security readout for executives and security teams
Plain-English summary
CVE-2019-12866 describes a JetBrains YouTrack authorization flaw. A user-controlled key could let someone access an object they should not access. JetBrains says it was fixed in 2018.4.49168. The public record does not provide CVSS, affected version range, exploit status, or detailed impact.
Executive priority
Prioritize identification and upgrade of YouTrack instances, especially where project data is sensitive. Business urgency is hard to quantify because public severity and impact details are missing.
Technical view
The issue is reported as an insecure direct object reference with authorization bypass through a user-controlled key in JetBrains YouTrack. The source bundle identifies the fixed build as 2018.4.49168 but omits vulnerable version bounds, affected request surfaces, privileges required, and data types exposed.
Likely exposure
Organizations running JetBrains YouTrack should verify whether any instance is older than fixed build 2018.4.49168. Exposure cannot be scoped further from supplied sources because affected versions and deployment prerequisites are not listed.
Exploitation context
The supplied sources do not report active exploitation, public exploit availability, or inclusion in CISA KEV. Treat exploitation status as unconfirmed, not absent.
Researcher notes
Evidence is limited to a brief CVE description and JetBrains bulletin reference. Do not infer affected versions, exploitability, or data exposure beyond the stated IDOR authorization bypass and fixed build.
Mitigation direction
- Upgrade YouTrack to 2018.4.49168 or later where applicable.
- Check JetBrains guidance for any version-specific remediation details.
- Inventory internet-facing and internal YouTrack instances.
- Review access controls around sensitive YouTrack projects and objects.
Validation and detection
- Confirm each YouTrack instance build number against 2018.4.49168.
- Review asset inventory for unmanaged or legacy YouTrack deployments.
- Check vendor advisories for affected-version details not in the CVE record.
- Review logs for unusual access to restricted YouTrack objects.
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.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-12866 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://blog.jetbrains.com/blog/2019/06/19/jetbrains-security-bulletin-q1-2019/CVE reference · x_refsource_CONFIRM
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.