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CVE-2026-123836VulnerabilityPublished

In JetBrains Datalore before 2026.4 workspace collaborators could obtain the owner's SSH private key via Git backup

Source GCVE Database

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Authoritative record:CVE-2026-123836· High 8.8

Not known to be exploited · CVSS 8.8 High : upgrade to 2026.4 soon.

Data as of 6 Nov 2026, 19:17 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (JetBrains)CVSS 3.18.8
Patch
Available – fixed in 2026.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 6 Nov 2026.

What to do

Upgrade Datalore to 2026.4.

Affected software

ProductAffectedFixed in
JetBrainsDataloreAffected
  • <2026.4
Fixed in
  • 2026.4

AI-suggested

A fix is available in JetBrains Datalore version 2026.4. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated in the provided data.

Description

A vulnerability in JetBrains Datalore before version 2026.4 allows workspace collaborators to obtain the owner's SSH private key through Git backup. This issue could lead to full confidentiality, integrity, and availability compromise of affected systems.

References

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