CVE-2026-56141Network attack vector

Unauthenticated account takeover via predictable restore codes

Published Jun 19, 2026 · Updated Jun 19, 2026

Predictable restore codes in affected JetBrains Hub releases allow remote attackers to take over user accounts without authentication. The account-restore code generator uses a cryptographically weak pseudorandom number generator, producing codes that lack sufficient unpredictability. Network access to the Hub service is sufficient; successful use of a predicted code grants control under the target account's existing privileges.

CVSS severity9.8
Critical
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Predictable restore codes in affected JetBrains Hub releases allow remote attackers to take over user accounts without authentication. The account-restore code generator uses a cryptographically weak pseudorandom number generator, producing codes that lack sufficient unpredictability. Network access to the Hub service is sufficient; successful use of a predicted code grants control under the target account's existing privileges.

The record

CVE
CVE-2026-56141
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
JetBrains
Product
Hub
Classifications
CWE-338, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · Hubversion=0 <2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429

Published CVSS scores

9.8JetBrainsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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