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VulnerabilityPublished

CVE-2026-123285: JetBrains Datalore · Argument Injection

Affects JetBrains DataloreSource CVE Database V5

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Not known to be exploited · CVSS 6.3 Medium : upgrade to 2026.3 when convenient.

Data as of 6 Nov 2026, 11:04 UTC

CVSS 3.1 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (JetBrains)CVSS 3.16.3
Patch
Available – fixed in 2026.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade JetBrains Datalore to 2026.3.

Affected software

ProductAffectedFixed in
JetBrainsDataloreAffected
  • <2026.3
Fixed in
  • 2026.3

AI-suggested

Upgrade JetBrains Datalore to version 2026.3 or later, where this vulnerability has been fixed. No additional mitigation steps are indicated by the vendor advisory.

Description

CVE-2026-123285 is a vulnerability in JetBrains Datalore before version 2026.3 that allows command execution in the database task container via JVM options injection. This flaw is classified as CWE-88 Argument Injection. The issue has been fixed in version 2026.3.

References

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