FKIE_CVE-2026-50559

Vulnerability from fkie_nvd - Published: 2026-06-19 21:17 - Updated: 2026-06-26 20:22
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle matrix parameters past the security layer, and using encoded slashes (%2F) or backslashes (%5C) to access protected static resources. This is a distinct issue from CVE-2026-39852, which addressed only literal semicolon stripping. Versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2 contain a patch.
References
security-advisories@github.comhttps://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5vExploit, Vendor Advisory
Impacted products
Vendor Product Version
quarkus quarkus *
quarkus quarkus *
quarkus quarkus *
quarkus quarkus *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "quarkus",
          "vendor": "quarkusio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.36.0, \u003c 3.36.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.33.0, \u003c 3.33.2.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.27.0, \u003c 3.27.4.1"
            },
            {
              "status": "affected",
              "version": "\u003c 3.20.6.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3E37C5F3-9057-44CE-A42A-71BD38827241",
              "versionEndExcluding": "3.20.6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D726AC73-94BB-4DC6-A13F-52E7A93DC593",
              "versionEndExcluding": "3.27.4.1",
              "versionStartIncluding": "3.21.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DAAA66C6-B4F8-4517-A4FF-F3F831BEAF0F",
              "versionEndExcluding": "3.33.2.1",
              "versionStartIncluding": "3.28.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6E73505E-C605-42F6-B9A1-E9BDFF0090D8",
              "versionEndExcluding": "3.36.3",
              "versionStartIncluding": "3.34.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle matrix parameters past the security layer, and using encoded slashes (%2F) or backslashes (%5C) to access protected static resources. This is a distinct issue from CVE-2026-39852, which addressed only literal semicolon stripping. Versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2 contain a patch."
    }
  ],
  "id": "CVE-2026-50559",
  "lastModified": "2026-06-26T20:22:57.947",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-50559",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-22T17:29:52.634980Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-19T21:17:02.373",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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

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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.
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  • 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.


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