CVE-2026-87743Quarkus-vertx-http: authorization bypass via path normalization discrepancy in quarkus http security
- 7.5HighCVSS base score
- 0.52%Exploitation in 30 daysEPSS · top 55% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 9 days later
· 9 days later
Published
- 41 days later
· 41 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.52% · top 55% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
Red Hat · Red Hat build of Quarkus 3.27.5.SP2
All versions: unaffected
Red Hat · Red Hat build of Quarkus 3.33.3.SP2
All versions: unaffected
Red Hat · Red Hat OpenShift Dev Spaces 3.31
- unaffected 1792491532 – < *
Red Hat · Exploit Intelligence
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · OpenShift Serverless
All versions: unknown
Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3
All versions: unknown
Red Hat · Red Hat build of Apicurio Registry 3
All versions: unknown
Red Hat · Red Hat build of Debezium 3
All versions: unknown
Red Hat · Red Hat Build of Keycloak
All versions: unknown
Red Hat · Red Hat Build of Keycloak
All versions: unknown
Red Hat · Red Hat Build of Keycloak
All versions: unknown
Red Hat · Red Hat Build of Keycloak
All versions: unknown
Red Hat · Red Hat Build of Keycloak
All versions: unknown
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
What to do
Workaround: 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.
References
References5
- RHSA-2026:69440 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:69470 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:90321 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-87743 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2530523 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-82862 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-87743)Record last updated .