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HIGH severity

Quarkus CORS filter allows simple GET and POST requests with an invalid Origin to proceedGHSA-9895-g6x5-xwcp

HIGH

GHSA-9895-g6x5-xwcp is a high-severity (CVSS 7.5) CWE-1026 vulnerability in io.quarkus:quarkus-vertx-http. A fix is available for io.quarkus:quarkus-vertx-http — see the affected versions and patch details below.

Also known asCVE-2022-4147
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-9895-g6x5-xwcp.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs50th percentile — riskier than 50% of all scored CVEsHighest risk
0.00%0.37%0.74%1.12%0.5%0.6%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
☕io.quarkus:quarkus-vertx-http☕io.quarkus:quarkus-vertx-http

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

Quarkus CORS filter allows simple GET and POST requests with invalid Origin to proceed. Simple GET or POST requests made with XMLHttpRequest are the ones which have no event listeners registered on the object returned by the XMLHttpRequest upload property and have no ReadableStream object used in the request.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenio.quarkus:quarkus-vertx-http≥ 2.14.0.CR1&&< 2.14.2.Final2.14.2.Finalio.quarkus:quarkus-vertx-http:2.14.2.Final
☕Mavenio.quarkus:quarkus-vertx-httpall versions2.13.5.Finalio.quarkus:quarkus-vertx-http:2.13.5.Final

Affected Products

1 product · 2 configurations
Application
quarkusquarkus
≥ 2.14.0 && < 2.14.2
range

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 2.14.2.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9895-g6x5-xwcp 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.

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 HatModerate
ProductFixed inAdvisory
Red Hat build of Quarkus 2.13.5see advisoryRHSA-2022:9023
Red Hat build of Quarkus Platform 2.7.6.SP3quarkus-vertx-httpRHSA-2022:8957

Frequently Asked Questions

Quarkus CORS filter allows simple GET and POST requests with invalid Origin to proceed. Simple GET or POST requests made with XMLHttpRequest are the ones which have no event listeners registered on the object returned by the XMLHttpRequest upload property and have no ReadableStream object used in the request.
O3 Security · Impact-Aware SCA

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Quarkus CORS filter allows simple GET and POST…