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Maven
Not in CISA KEV
HIGH severity

GHSA-4f4r-wgv2-jjvg quarkus-vertx-http

HIGH

GHSA-4f4r-wgv2-jjvg is a high-severity (CVSS 8.1) CWE-148 vulnerability in io.quarkus:quarkus-vertx-http. 1 public exploit reference exists, so weaponization risk is real. A fix is available for io.quarkus:quarkus-vertx-http — see the affected versions and patch details below.

Quarkus HTTP vulnerable to incorrect evaluation of permissions

Also known asCVE-2023-4853
Published
Sep 20, 2023
Updated
Mar 13, 2024
Affected
12 pkgs
Patched
12 / 12
Exploits
1 known
Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs72th percentile — riskier than 72% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-4f4r-wgv2-jjvg plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

12 pkgs affected
io.quarkus:quarkus-vertx-httpio.quarkus:quarkus-vertx-httpio.quarkus:quarkus-vertx-httpio.quarkus:quarkus-undertowio.quarkus:quarkus-undertowio.quarkus:quarkus-undertowio.quarkus:quarkus-csrf-reactiveio.quarkus:quarkus-csrf-reactive+4 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.

Affected Packages

12 total 12 fixed
EcosystemPackageVulnerable rangeFix
Mavenio.quarkus:quarkus-vertx-httpall versions2.16.11.Finalio.quarkus:quarkus-vertx-http:2.16.11.Final
Mavenio.quarkus:quarkus-vertx-http3.0.0&&< 3.2.6.Final3.2.6.Finalio.quarkus:quarkus-vertx-http:3.2.6.Final
Mavenio.quarkus:quarkus-vertx-http3.3.0&&< 3.3.33.3.3io.quarkus:quarkus-vertx-http:3.3.3
Mavenio.quarkus:quarkus-undertowall versions2.16.11.Finalio.quarkus:quarkus-undertow:2.16.11.Final
Mavenio.quarkus:quarkus-undertow3.0.0&&< 3.2.6.Final3.2.6.Finalio.quarkus:quarkus-undertow:3.2.6.Final
Mavenio.quarkus:quarkus-undertow3.3.0&&< 3.3.33.3.3io.quarkus:quarkus-undertow:3.3.3
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.quarkus:quarkus-vertx-http, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update io.quarkus:quarkus-vertx-http to 2.16.11.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4f4r-wgv2-jjvg is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-4f4r-wgv2-jjvg can be triaged on real exposure rather than presence alone.

Tailored to GHSA-4f4r-wgv2-jjvg. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant
ProductFixed inAdvisory
Openshift Serverless 1 on RHEL 8openshift-serverless-clients-0:1.9.2-3.el8RHSA-2023:5479
Red Hat build of OptaPlanner 8quarkus-vertx-httpRHSA-2023:5446
Red Hat build of Quarkus 2.13.8.SP2io.quarkus/quarkus-keycloak-authorization:2.13.8.Final-redhat-00005RHSA-2023:5170
Red Hat Camel Extensions for Quarkus 2.13.3-1quarkus-vertx-httpRHSA-2023:5310
Red Hat OpenShift Serverless 1.30openshift-serverless-1/client-kn-rhel8:1.9.2-3RHSA-2023:5480
RHEL-8 based Middleware Containersrhpam-7/rhpam-kogito-builder-rhel8:7.13.4-3RHSA-2023:6107
RHINT Camel-K-1.10.2quarkus-vertx-httpRHSA-2023:5337
RHINT Service Registry 2.5.4 GAquarkus-vertx-httpRHSA-2023:7653

Frequently Asked Questions

A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.
O3 Security · Impact-Aware SCA

Is GHSA-4f4r-wgv2-jjvg in your dependencies?

O3 Security finds GHSA-4f4r-wgv2-jjvg across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-4f4r-wgv2-jjvg: quarkus-vertx (High 8.1) | O3 Security