Skip to main content
No exploitation reportedFix available

CVE-2026-123283

SSO-Based Account Takeover in JetBrains Datalore Prior to 2026.4

No exploitation reported by the sources we read.

  • Published2026-11-06
  • Fixed in2026.4
  • WeaknessCWE-290

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In JetBrains Datalore before 2026.4 account takeover was possible via SSO sign-in to a pre-registered account

Timeline

dates in UTC
  1. 2026-11-0610:27CVE publishedCNA

Versions per branch

NVD
Jetbrains datalore
BranchAffectedFixed in
2026.4< 2026.42026.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As JetBrains, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • JetBrains Dataloreother versions: not affected
    Affected
    • < 2026.4fixed in 2026.4semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-06

Fix

  1. Update Jetbrains datalore to 2026.4

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Published
2026-11-06
Last Modified
2026-11-13
NVD status
Analyzed
GitHub Advisory
GHSA-xc76-7wv3-x59p

Frequently asked questions

What is CVE-2026-123283?

In JetBrains Datalore before 2026.4 account takeover was possible via SSO sign-in to a pre-registered account

Is CVE-2026-123283 actively exploited?

Active exploitation of CVE-2026-123283 has not been confirmed. Its EPSS score was 0.2% on 2026-11-12, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-123283?

CVE-2026-123283 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record