CVE-2026-87743 Quarkus HTTP - Authorization Bypass

Quarkus HTTP security contains an authorization bypass caused by path normalization discrepancy between security matcher and HTTP request dispatchers, letting unauthenticated attackers access protected endpoints, exploit requires crafted URL.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.52% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Authorization Bypass, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-551

Vendor fix

Update to the latest version with the security fix.

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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