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CVE-2026-123290

5.3 mediumEPSS 0.3%

Medium (5.3) in jetbrains datalore. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.

On this page
In JetBrains Datalore before 2026.4 hidden notebook code was exposed to unauthenticated users via the public interactive report content endpoint

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
0.3% estimated probability of exploitation activity in the next 30 days; 25th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-06. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-201 Insertion of Sensitive Information Into Sent Data
OWASP Top 10
A01:2025 Broken Access Control
Published
Modified
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
JetBrains Datalorebefore 2026.4

Attack patterns (CAPEC)

  • CAPEC-12 Choosing Message Identifier Likelihood: High · Severity: High
  • CAPEC-217 Exploiting Incorrectly Configured SSL/TLS Likelihood: Low
  • CAPEC-612 WiFi MAC Address Tracking Severity: Low
  • CAPEC-613 WiFi SSID Tracking Severity: Low
  • CAPEC-618 Cellular Broadcast Message Request Severity: Low
  • CAPEC-619 Signal Strength Tracking Severity: Low
  • CAPEC-621 Analysis of Packet Timing and Sizes Severity: Low
  • CAPEC-622 Electromagnetic Side-Channel Attack Severity: Low
  • CAPEC-623 Compromising Emanations Attack Severity: Low

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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