CVE-2026-123300: JetBrains Hub · Missing Authorization
Affects JetBrains HubSource CVE Database V5
Not known to be exploited · CVSS 2.7 Low : upgrade to 2026.2.52519 when convenient.
Data as of 6 Nov 2026, 11:03 UTC
Thin evidence
One scorer or none| CNA (JetBrains) | CVSS 3.1 | 2.7 |
|---|
- Patch
- Available – fixed in 2026.2.52519
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:NExploitation 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 5 Nov 2026.
What to do
Upgrade JetBrains Hub to 2026.2.52519.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsHub | Affected
| Fixed in
|
AI-suggested
Upgrade JetBrains Hub to version 2026.2.52519 or later, where this authorization issue has been fixed. No other mitigation is required as the vulnerability is resolved in the fixed version.
Description
CVE-2026-123300 is a vulnerability in JetBrains Hub before version 2026.2.52519 where missing authorization allowed users with read-only access to modify authentication module group mappings. This flaw was fixed in version 2026.2.52519. The vulnerability has a low CVSS score of 2.7, indicating limited impact.