Quarkus-vertx-http: authorization bypass via path normalization discrepancy in quarkus http security
Summary
| CVE | CVE-2026-87743 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-18 10:17:07 UTC |
| Updated | 2026-09-22 15:17:20 UTC |
| Description | A flaw was found in Quarkus HTTP security. An unauthenticated attacker can exploit a discrepancy in how paths are normalized between the security matcher and HTTP request dispatchers. This allows the attacker to craft a URL that the security matcher considers public, but which is then routed to a protected endpoint, leading to an authorization bypass and potential unauthorized access to sensitive information. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.004890000 probability, percentile 0.411750000 (date 2026-09-22)
Problem Types: CWE-551 | CWE-551 Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | CVSS | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Exploit Intelligence | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | OpenShift Serverless | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Apache Camel 4 For Quarkus 3 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Apicurio Registry 3 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Debezium 3 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak | Not specified | Not specified |
| CNA | Red Hat | Red Hat Fuse 7 | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift Dev Spaces | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:69470 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/errata/RHSA-2026:69440 | [email protected] | access.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-87743 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Red Hat would like to thank Michael Read (https://github.com/Michael-JRead) for reporting this issue. (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-09-09T06:09:47.486Z | Reported to Red Hat. |
| CNA | 2026-09-17T13:10:22.000Z | Made public. |
Workarounds
CNA: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
There are currently no legacy QID mappings associated with this CVE.