CVE-2026-100266: CWE-862 in JetBrains Hub
CVE-2026-100266 is a high-severity vulnerability in JetBrains Hub before version 2026.2.52366. It involves missing authorization controls that allow authenticated users to send arbitrary emails from the server's trusted address. This flaw could be exploited to send unauthorized emails, potentially leading to impersonation or phishing risks. The vulnerability has a CVSS score of 7.7, indicating significant impact on integrity but no impact on confidentiality or availability.
AI Analysis
Technical Summary
JetBrains Hub versions prior to 2026.2.52366 contain a CWE-862 authorization bypass vulnerability. Authenticated users lacking proper authorization can exploit this flaw to send arbitrary emails from the server's trusted address. This could allow attackers to impersonate the server in email communications. The vulnerability is rated with a CVSS 3.1 score of 7.7 (AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N), reflecting network attack vector, low attack complexity, and partial privileges required.
Potential Impact
The vulnerability allows authenticated users to send arbitrary emails from the server's trusted address, compromising the integrity of email communications. This could facilitate phishing or social engineering attacks by making malicious emails appear legitimate. There is no direct impact on confidentiality or availability according to the CVSS vector.
Mitigation Recommendations
A fix is available in JetBrains Hub version 2026.2.52366. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-100266: CWE-862 in JetBrains Hub
Description
CVE-2026-100266 is a high-severity vulnerability in JetBrains Hub before version 2026.2.52366. It involves missing authorization controls that allow authenticated users to send arbitrary emails from the server's trusted address. This flaw could be exploited to send unauthorized emails, potentially leading to impersonation or phishing risks. The vulnerability has a CVSS score of 7.7, indicating significant impact on integrity but no impact on confidentiality or availability.
CVSS v3.1
Score 7.7high
Affected software
JetBrains
Hub
pkg:github/jetbrains/HubRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
JetBrains Hub versions prior to 2026.2.52366 contain a CWE-862 authorization bypass vulnerability. Authenticated users lacking proper authorization can exploit this flaw to send arbitrary emails from the server's trusted address. This could allow attackers to impersonate the server in email communications. The vulnerability is rated with a CVSS 3.1 score of 7.7 (AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N), reflecting network attack vector, low attack complexity, and partial privileges required.
Potential Impact
The vulnerability allows authenticated users to send arbitrary emails from the server's trusted address, compromising the integrity of email communications. This could facilitate phishing or social engineering attacks by making malicious emails appear legitimate. There is no direct impact on confidentiality or availability according to the CVSS vector.
Mitigation Recommendations
A fix is available in JetBrains Hub version 2026.2.52366. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-25T17:02:06.924Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abd2c322a4e24523d2ec307
Added to database: 09/30/2026, 15:35:14 UTC
Last enriched: 09/30/2026, 15:48:33 UTC
Last updated: 10/01/2026, 03:42:41 UTC
Views: 12
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