CVE-2026-123289
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
- Record
CVE-2026-123289- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-863
- Updated
- 2026-11-06
EUVDEUVD-2026-118054
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
- Record
EUVD-2026-118054- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-vh32-v982-8c6x
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
- Record
GHSA-vh32-v982-8c6x- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-863
- Updated
- 2026-11-06
NVD
In JetBrains Datalore before 2026.4 improper authorisation allowed notebook viewers to modify files
- Record
CVE-2026-123289- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-863
- Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | CVE List, EUVD | |
| published | EUVD, NVD | |
| aliases, references, title | GitHub Advisories | |
| cwes, severity | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-123289 is a medium vulnerability (CVSS 5.4) in Jetbrains Datalore, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 18th percentile. No source names a fixed version.