Security readout for executives and security teams
Plain-English summary
CVE-2019-19704 is an information disclosure issue in JetBrains Upsource before version 2020.1. The public description says an incorrect user matching algorithm could expose information. Available sources do not state what data is exposed, required privileges, or business impact.
Executive priority
Prioritize if Upsource is still deployed and contains sensitive engineering or identity data. The urgency is constrained by incomplete public detail and no sourced evidence of active exploitation.
Technical view
The vulnerability affects JetBrains Upsource versions before 2020.1 and is described as information disclosure caused by incorrect user matching. No CVSS score, CWE, exploit details, or affected CPEs are provided in the supplied sources.
Likely exposure
Exposure is limited to organizations that deployed JetBrains Upsource before 2020.1. Risk is higher where Upsource contains sensitive source code, review metadata, user identity data, or internal project information.
Exploitation context
The source bundle does not show CISA KEV listing, public exploitation, exploit availability, or attack prerequisites. Treat exploitation status as unconfirmed rather than active.
Researcher notes
Key gaps remain: no CVSS, CWE, detailed affected configuration, privilege requirement, or disclosure scope in the provided sources. Analysis should stay bounded to Upsource before 2020.1 and information disclosure via user matching.
Mitigation direction
- Inventory all JetBrains Upsource deployments and confirm exact versions.
- Upgrade Upsource instances older than 2020.1 to 2020.1 or later.
- Review JetBrains security bulletin and support guidance for additional remediation details.
- Restrict Upsource access to trusted users and networks until remediation is confirmed.
Validation and detection
- Check application version information for every Upsource instance.
- Verify no production instance remains below version 2020.1.
- Review Upsource permissions for overly broad user or project access.
- Inspect relevant audit logs for unexpected access to projects or user-linked information.
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-2019-19704 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/CVE reference · x_refsource_MISC
- https://blog.jetbrains.com/blog/2020/08/06/jetbrains-security-bulletin-q2-2020/CVE 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.