PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-111093 JetBrains CVE debrief

CVE-2026-111093 debrief: JetBrains Datalore unauthenticated path traversal vulnerability allows reading arbitrary files before version 2026.2.1. This HIGH severity vulnerability enables attackers to access sensitive information, potentially leading to further exploitation. Defenders should verify exposure and apply patches to prevent exploitation. The vulnerability exists in the report blob endpoint, allowing unauthenticated access to arbitrary files. Affected deployments should be identified, and owners assigned for follow-up. Official advisories and CVE records should be reviewed to validate affected scope, severity, and vendor guidance.

Vendor
JetBrains
Product
Datalore
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-15
Original CVE updated
2026-10-15
Advisory published
2026-10-15
Advisory updated
2026-10-15

Who should care

Defenders responsible for JetBrains Datalore instances should assess exposure and apply patches to prevent exploitation. This includes verifying the current version of Datalore, reviewing system configurations, and ensuring that all necessary security measures are in place. Additionally, security teams should monitor for potential exploitation attempts and implement compensating controls if necessary. Operators and平台

Why it matters

CVE-2026-111093 is a HIGH severity vulnerability in JetBrains Datalore that allows unauthenticated path traversal and reading of arbitrary files. Defenders should verify exposure, apply patches, and monitor for exploitation attempts.

  • Verify exposure of JetBrains Datalore instances to unauthenticated path traversal.
  • Apply patches to prevent reading arbitrary files.
  • Monitor for potential exploitation attempts.
  • Update inventory to ensure all instances are running version 2026.2.1 or later.

Technical summary

CVE-2026-111093 is a HIGH severity vulnerability in JetBrains Datalore before version 2026.2.1. It allows unauthenticated path traversal via the report blob endpoint, enabling reading of arbitrary files. This vulnerability can be exploited by attackers to access sensitive information. Defenders should prioritize verifying exposure and applying patches for JetBrains Datalore versions before 2026.2.1. The vulnerability's technical details indicate a need for immediate attention to prevent potential data breaches.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for JetBrains Datalore versions before 2026.2.1.

Recommended defensive actions

  • Verify JetBrains Datalore versions and apply patches to prevent unauthenticated path traversal.
  • Review and update inventory to ensure all instances are running version 2026.2.1 or later.
  • Monitor for potential exploitation attempts and implement compensating controls if necessary.

Evidence notes

The CVE record and source item indicate a HIGH severity vulnerability in JetBrains Datalore before version 2026.2.1, allowing unauthenticated path traversal and reading of arbitrary files.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-111093 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-111093

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-111093 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-111093

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • CVE-2026-111093

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/111xxx/CVE-2026-111093.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://www.jetbrains.com/privacy-security/issues-fixed/

    Supplemental source

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.