CVE-2026-19651 IBM Enterprise Build of Quarkus - Authorization Bypass

IBM Enterprise Build of Quarkus 3.27.1 through 3.27.5, and 3.33.1 through 3.33.3 contains an authorization bypass caused by incorrect mapping of values to untrusted URL query parameters, letting attackers bypass authorization, exploit requires crafted URL query parameters.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
8 September 2026
Updated
15 October 2026
Weakness
CWE-639

Vendor fix

Update to a version later than 3.27.5 or 3.33.3 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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