CVE-2026-19651: CWE-639 Authorization Bypass Through User-Controlled Key in IBM Enterprise Build of Quarkus
IBM Enterprise Build of Quarkus versions 3.27.1 through 3.27.5 and 3.33.1 through 3.33.3 contain an authorization bypass vulnerability. This flaw arises from incorrect mapping of values to untrusted URL query string input, allowing attackers to manipulate query parameters to bypass authorization checks. The vulnerability is identified as CWE-639. It has a high severity with a CVSS score of 7.4. No official patch or remediation guidance is currently available from the vendor.
AI Analysis
Technical Summary
CVE-2026-19651 affects IBM Enterprise Build of Quarkus in versions 3.27.1 through 3.27.5 and 3.33.1 through 3.33.3. The vulnerability involves an authorization bypass caused by improper handling of user-controlled URL query parameters, leading to incorrect mapping of untrusted input. This allows an attacker to bypass authorization mechanisms. The issue is categorized under CWE-639 (Authorization Bypass Through User-Controlled Key). The CVSS v3.1 score is 7.4, indicating high severity. There is no vendor advisory or patch available at this time, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to bypass authorization controls, potentially gaining unauthorized access to protected resources or functionality. The vulnerability does not impact availability but has high confidentiality and integrity impacts as per the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor IBM advisories for updates and consider implementing compensating controls such as strict input validation and access control reviews where feasible.
CVE-2026-19651: CWE-639 Authorization Bypass Through User-Controlled Key in IBM Enterprise Build of Quarkus
Description
IBM Enterprise Build of Quarkus versions 3.27.1 through 3.27.5 and 3.33.1 through 3.33.3 contain an authorization bypass vulnerability. This flaw arises from incorrect mapping of values to untrusted URL query string input, allowing attackers to manipulate query parameters to bypass authorization checks. The vulnerability is identified as CWE-639. It has a high severity with a CVSS score of 7.4. No official patch or remediation guidance is currently available from the vendor.
CVSS v3.1
Score 7.4high
Affected software
cpe:2.3:a:ibm:enterprise_build_of_quarkus:3.27.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:enterprise_build_of_quarkus:3.27.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:enterprise_build_of_quarkus:3.33.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:enterprise_build_of_quarkus:3.33.3:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-19651 affects IBM Enterprise Build of Quarkus in versions 3.27.1 through 3.27.5 and 3.33.1 through 3.33.3. The vulnerability involves an authorization bypass caused by improper handling of user-controlled URL query parameters, leading to incorrect mapping of untrusted input. This allows an attacker to bypass authorization mechanisms. The issue is categorized under CWE-639 (Authorization Bypass Through User-Controlled Key). The CVSS v3.1 score is 7.4, indicating high severity. There is no vendor advisory or patch available at this time, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to bypass authorization controls, potentially gaining unauthorized access to protected resources or functionality. The vulnerability does not impact availability but has high confidentiality and integrity impacts as per the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor IBM advisories for updates and consider implementing compensating controls such as strict input validation and access control reviews where feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-12T17:38:20.473Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa07237acd9273b4931f74b
Added to database: 09/08/2026, 20:38:15 UTC
Last enriched: 09/08/2026, 20:52:28 UTC
Last updated: 09/09/2026, 01:15:47 UTC
Views: 7
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