CVE-2026-56141: JetBrains Hub account takeover via predictable restore codes

CVE-2026-56141 · Severity: critical · CVSS 9.8 · Published 2026-06-19

JetBrains Hub, a central authentication and authorization service for JetBrains team tools, is vulnerable to a flaw that allows unauthorized users to take over accounts. By predicting the codes used to restore access to an account, an attacker can gain full control over user profiles without needing a password. This could lead to the theft of sensitive developer data, unauthorized access to source code, and disruption of business operations.

Technologies: Jetbrains Hub. Vendors: Jetbrains.

Quick answers

Is CVE-2026-56141 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-56141 being exploited in the wild.
How severe is CVE-2026-56141?
Critical severity, with a CVSS score of 9.8, published 19 June 2026.
Which products and versions are affected?
Jetbrains Hub Before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429.
Is there a fix for CVE-2026-56141?
A patch was published on 2026-06-19: Fixes released in multiple version branches including 2026.1.13757 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56141 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-56141?
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.

Technical details

JetBrains Hub versions prior to the fixed releases (e.g., 2026.1.13757) utilize a cryptographically weak pseudo-random number generator (PRNG) for generating account restoration codes (CWE-338). This weakness makes the restore codes predictable. An unauthenticated remote attacker can exploit this by initiating a password reset or account recovery process and guessing the valid code. Successful exploitation results in full account takeover, granting the attacker the same privileges as the victim user. The vulnerability is rated critical due to the lack of required authentication or user interaction.

Affected products

  • JetBrains Hub Before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429

Timeline

  • 2026-06-19: advisory: Initial disclosure by JetBrains and NVD publication
  • 2026-06-19: patched: Fixes released in multiple version branches including 2026.1.13757

References

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