# CVE-2026-123296: JetBrains Hub privilege escalation via forged email verification

Source: https://junglewise.ai/threats/cve-2026-123296-in-jetbrains-hub-before-2026-2-52519-privilege-escalation-via  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-06. Updated: 2026-11-06  
License: CC BY 4.0 with a link back

CVE-2026-123296 · Severity: high · CVSS 7.5 · Published 2026-11-06

JetBrains Hub is a team collaboration platform used to manage user accounts and permissions. An attacker could forge email verification messages to escalate their account privileges without proper authorization, gaining elevated access to the system.

Technologies: [Jetbrains Hub](https://junglewise.ai/threats/technologies/hub). Vendors: [Jetbrains](https://junglewise.ai/threats/vendors/jetbrains).

## Quick answers

**Is CVE-2026-123296 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-123296 being exploited in the wild.

**How severe is CVE-2026-123296?** High severity, with a CVSS score of 7.5, published 6 November 2026.

**Which products and versions are affected?** Jetbrains Hub before 2026.2.52519.

**Is there a fix for CVE-2026-123296?** Yes: fixed in 2026.2.52519. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-123296 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-123296?** Check whether you run Jetbrains Hub at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2026.2.52519

## Technical details

A privilege escalation vulnerability exists in Hub's email verification mechanism that fails to properly validate email verification tokens, allowing an attacker with network access to bypass authentication controls and escalate privileges. The vulnerability affects versions before 2026.2.52519 and requires no user interaction beyond crafting a forged verification message.

## Affected products

- JetBrains Hub before 2026.2.52519

## Timeline

- 2026-11-06: disclosed

## References

- [https://www.jetbrains.com/privacy-security/issues-fixed/](https://www.jetbrains.com/privacy-security/issues-fixed/)

## Related threats

- [JetBrains Hub SMTP command injection in email verification](https://junglewise.ai/threats/cve-2026-123298-in-jetbrains-hub-before-2026-2-52556-smtp-command-injection-via)
- [JetBrains Hub two-factor authentication bypass in password reset](https://junglewise.ai/threats/cve-2026-123297-in-jetbrains-hub-before-2026-2-52519-two-factor-authentication)
- [JetBrains Hub two-factor authentication bypass in profile update](https://junglewise.ai/threats/cve-2026-123295-in-jetbrains-hub-before-2026-2-52519-enforced-two-factor)
- [JetBrains Hub privilege escalation in email verification](https://junglewise.ai/threats/cve-2026-123294-in-jetbrains-hub-before-2026-2-52556-privilege-escalation-was)
- [JetBrains Hub authorization bypass in email sending](https://junglewise.ai/threats/cve-2026-100266-in-jetbrains-hub-before-2026-2-52366-missing-authorisation)