Security advisory

{
  "id": "d8017db82f02487b5dbc20446a6021e80b2b0b81a976941873e03062062e3a0c",
  "url": "https://osv.dev/vulnerability/CVE-2020-17523",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-17523",
    "summary": "Apache Shiro before 1.7.1, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.",
    "evidence": "osv:CVE-2020-17523",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-17523",
      "aliases": [
        "CVE-2020-17523",
        "GHSA-v98j-7crc-wvrj"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/shiro",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "40bac06d2fd41d7a9e9e0409753b5a409972150c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.7.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "shiro-root-1.7.0",
            "shiro-root-1.6.0",
            "shiro-root-1.5.3-release-vote1",
            "shiro-root-1.5.3",
            "shiro-root-1.5.2-release-vote1",
            "shiro-root-1.5.2",
            "shiro-root-1.5.0",
            "shiro-root-1.4.1",
            "shiro-root-1.4.0-RC2-release-vote1",
            "shiro-root-1.4.0-RC2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-17523.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:57.113190541Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r5b93ddf97e2c4cda779d22fab30539bdec454cfa5baec4ad0ffae235%40%3Cgitbox.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r679ca97813384bdb1a4c087810ba44d9ad9c7c11583979bb7481d196%40%3Cdev.shiro.apache.org%3E",
        "https://lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd%40%3Cusers.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r852971e28f54cafa7d325bd7033115c67d613b112a2a1076817390ac%40%3Cdev.shiro.apache.org%3E",
        "https://lists.apache.org/thread.html/r9d93dfb5df016b1a71a808486bc8f9fbafebbdbc8533625f91253f1d%40%3Cdev.shiro.apache.org%3E",
        "https://lists.apache.org/thread.html/rd4b613e121438b97e3eb263cac3137caddb1dbd8f648b73a4f1898a6%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/re25b8317b00a50272a7252c4552cf1a81a97984cc2111ef7728e48e0%40%3Cdev.shiro.apache.org%3E",
        "https://lists.apache.org/thread.html/rce5943430a6136d37a1f2fc201d245fe094e2727a0bc27e3b2d43a39%40%3Cdev.shiro.apache.org%3E"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-17523",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438791,
  "published_at": "2021-02-03T17:15:13.7+00:00"
}