CVE-2026-123836: JetBrains Datalore · Link Following
Affects JetBrains DataloreSource CVE Database V5
Not known to be exploited · CVSS 8.8 High : upgrade to 2026.4 soon.
Data as of 6 Nov 2026, 17:47 UTC
Thin evidence
One scorer or none| CNA (JetBrains) | CVSS 3.1 | 8.8 |
|---|
- Patch
- Available – fixed in 2026.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 JetBrains Datalore to 2026.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsDatalore | Affected
| Fixed in
|
AI-suggested
Upgrade JetBrains Datalore to version 2026.4 or later, where this vulnerability is fixed. No other mitigation is indicated or required according to the vendor advisory.
Description
CVE-2026-123836 is a vulnerability in JetBrains Datalore before version 2026.4 that allows workspace collaborators to obtain the owner's SSH private key via Git backup due to improper link following (CWE-59). This flaw has a high severity with a CVSS score of 8.8. The issue is fixed in version 2026.4.