CVE-2026-18151: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2026-18151 is a medium severity vulnerability in IBM i versions 7.3 through 7.6. It involves a race condition during the WebSocket handshake process that could allow a remote authenticated attacker to obtain sensitive information. The vulnerability is due to improper synchronization when accessing shared resources concurrently.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization), affects IBM i versions 7.3, 7.4, 7.5, and 7.6. It arises from a race condition during the WebSocket handshake process, which could be exploited by a remote attacker with low privileges and no user interaction required to gain access to sensitive information. The CVSS 3.1 base score is 4.2, reflecting a medium impact primarily on confidentiality and integrity, with no impact on availability.
Potential Impact
A remote authenticated attacker could exploit this race condition to obtain sensitive information from the affected IBM i systems. The vulnerability impacts confidentiality and integrity but does not affect system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
No specific patch or remediation information is provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, limit access to trusted users and monitor for unusual activity related to WebSocket connections.
CVE-2026-18151: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Description
CVE-2026-18151 is a medium severity vulnerability in IBM i versions 7.3 through 7.6. It involves a race condition during the WebSocket handshake process that could allow a remote authenticated attacker to obtain sensitive information. The vulnerability is due to improper synchronization when accessing shared resources concurrently.
CVSS v3.1
Score 4.2medium
Affected software
IBM
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization), affects IBM i versions 7.3, 7.4, 7.5, and 7.6. It arises from a race condition during the WebSocket handshake process, which could be exploited by a remote attacker with low privileges and no user interaction required to gain access to sensitive information. The CVSS 3.1 base score is 4.2, reflecting a medium impact primarily on confidentiality and integrity, with no impact on availability.
Potential Impact
A remote authenticated attacker could exploit this race condition to obtain sensitive information from the affected IBM i systems. The vulnerability impacts confidentiality and integrity but does not affect system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
No specific patch or remediation information is provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, limit access to trusted users and monitor for unusual activity related to WebSocket connections.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-28T19:33:50.592Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa8483f55bf5e2cf57d35ef
Added to database: 09/14/2026, 19:17:19 UTC
Last enriched: 09/14/2026, 19:31:44 UTC
Last updated: 09/14/2026, 19:48:40 UTC
Views: 5
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