RHSA-2026:26194
Vulnerability from csaf_redhat - Published: 2026-06-17 21:02 - Updated: 2026-06-18 14:42Summary
Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6.SP2 security update
Severity
Important
Notes
Topic: An update is now available for Red Hat build of Quarkus.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability. For more information, see the CVE links in the References section.
Details: This release of Red Hat build of Quarkus 3.20.6.SP2 includes the following CVE fix:
* quarkus-vertx-http: Authentication/Authorization Bypass via Advanced Path Normalization Vulnerabilities [quarkus-3.20] (CVE-2026-50559)
For more information, see the release notes page listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Quarkus. A remote attacker could bypass HTTP path-based authorization policies by using specially crafted encoded semicolons, slashes, or backslashes in HTTP requests. This could allow unauthorized access to protected static resources, leading to information disclosure.
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat build of Quarkus 3.20.6.SP2
Red Hat / Red Hat build of Quarkus
|
cpe:/a:redhat:quarkus:3.20::el8
|
— |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
11 references
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update is now available for Red Hat build of Quarkus.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability. For more information, see the CVE links in the References section.",
"title": "Topic"
},
{
"category": "general",
"text": "This release of Red Hat build of Quarkus 3.20.6.SP2 includes the following CVE fix:\n\n* quarkus-vertx-http: Authentication/Authorization Bypass via Advanced Path Normalization Vulnerabilities [quarkus-3.20] (CVE-2026-50559)\n\nFor more information, see the release notes page listed in the References section.",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
}
],
"publisher": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
"name": "Red Hat Product Security",
"namespace": "https://www.redhat.com"
},
"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2026:26194",
"url": "https://access.redhat.com/errata/RHSA-2026:26194"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/updates/classification/#important",
"url": "https://access.redhat.com/security/updates/classification/#important"
},
{
"category": "external",
"summary": "https://access.redhat.com/products/quarkus/",
"url": "https://access.redhat.com/products/quarkus/"
},
{
"category": "external",
"summary": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=redhat.quarkus\u0026downloadType=distributions\u0026version=3.20.6.SP2",
"url": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=redhat.quarkus\u0026downloadType=distributions\u0026version=3.20.6.SP2"
},
{
"category": "external",
"summary": "https://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.20",
"url": "https://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.20"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26194.json"
}
],
"title": "Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6.SP2 security update",
"tracking": {
"current_release_date": "2026-06-18T14:42:50+00:00",
"generator": {
"date": "2026-06-18T14:42:50+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "5.0.0"
}
},
"id": "RHSA-2026:26194",
"initial_release_date": "2026-06-17T21:02:34+00:00",
"revision_history": [
{
"date": "2026-06-17T21:02:34+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2026-06-17T21:02:34+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2026-06-18T14:42:50+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat build of Quarkus 3.20.6.SP2",
"product": {
"name": "Red Hat build of Quarkus 3.20.6.SP2",
"product_id": "Red Hat build of Quarkus 3.20.6.SP2",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:quarkus:3.20::el8"
}
}
}
],
"category": "product_family",
"name": "Red Hat build of Quarkus"
}
],
"category": "vendor",
"name": "Red Hat"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-50559",
"cwe": {
"id": "CWE-551",
"name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"
},
"discovery_date": "2026-06-09T10:55:32.426000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2486959"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Quarkus. A remote attacker could bypass HTTP path-based authorization policies by using specially crafted encoded semicolons, slashes, or backslashes in HTTP requests. This could allow unauthorized access to protected static resources, leading to information disclosure.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "io.quarkus/quarkus-vertx-http: Quarkus: Authorization bypass in HTTP path-based policies via encoded characters",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important flaw in Quarkus where HTTP path-based authorization policies can be bypassed by a remote attacker. Specially crafted HTTP requests containing encoded semicolons, slashes, or backslashes can circumvent security controls, allowing unauthorized access to protected static resources and leading to information disclosure. This is critical in deployments where Quarkus applications serve sensitive static content and rely solely on path-based authorization.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat build of Quarkus 3.20.6.SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-50559"
},
{
"category": "external",
"summary": "RHBZ#2486959",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486959"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-50559",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-50559"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-50559",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50559"
},
{
"category": "external",
"summary": "https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v",
"url": "https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v"
}
],
"release_date": "2026-06-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-17T21:02:34+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat build of Quarkus 3.20.6.SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:26194"
},
{
"category": "workaround",
"details": "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.",
"product_ids": [
"Red Hat build of Quarkus 3.20.6.SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat build of Quarkus 3.20.6.SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "io.quarkus/quarkus-vertx-http: Quarkus: Authorization bypass in HTTP path-based policies via encoded characters"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…