{
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09"
      },
      "title": "cas-auth login CSRF / session injection issue",
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-352 Cross-Site Request Forgery (CSRF)",
              "lang": "en",
              "cweId": "CWE-352",
              "type": "CWE"
            }
          ]
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache APISIX",
          "versions": [
            {
              "status": "affected",
              "version": "3.0.0",
              "lessThanOrEqual": "3.16.0",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "descriptions": [
        {
          "value": "Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.\n\nThis defect allows a\u00a0remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.\n\nActions the victim takes upstream are then attributed to attackers identity.\n\n\nThis issue affects Apache APISIX: from 3.0.0 through 3.16.0.\n\nUsers are recommended to upgrade to version 3.17.0, which fixes the issue.",
          "lang": "en",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "<p>Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.</p><p><span style=\"background-color: rgb(255, 255, 255);\">This defect allows a</span><span style=\"background-color: rgb(255, 255, 255);\">&nbsp;</span><span style=\"background-color: rgb(255, 255, 255);\">remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity</span><span style=\"background-color: rgb(255, 255, 255);\">.</span></p><p><span style=\"background-color: rgb(255, 255, 255);\">Actions the victim takes upstream are then attributed to attackers identity.</span><br></p><p>This issue affects Apache APISIX: from 3.0.0 through 3.16.0.</p><p>Users are recommended to upgrade to version 3.17.0, which fixes the issue.</p>"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp",
          "tags": [
            "vendor-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ],
          "cvssV4_0": {
            "version": "4.0",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "privilegesRequired": "NONE",
            "userInteraction": "ACTIVE",
            "vulnConfidentialityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "subIntegrityImpact": "LOW",
            "vulnAvailabilityImpact": "NONE",
            "subAvailabilityImpact": "NONE",
            "Safety": "NOT_DEFINED",
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "valueDensity": "NOT_DEFINED",
            "vulnerabilityResponseEffort": "NOT_DEFINED",
            "providerUrgency": "NOT_DEFINED",
            "baseSeverity": "LOW",
            "baseScore": 2.1,
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "lokerxxx",
          "type": "reporter"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "cveId": "CVE-2026-49871",
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "serial": 1,
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}