{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "3.91.0"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b5bed116d57ed89ee2289de89fd1eb6116d2476f"
            }
          ],
          "repo": "https://github.com/sonatype/nexus-public",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Sonatype",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3438.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "3.0.0"
          },
          {
            "fixed": "3.91.0"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "3.0.0"
          },
          {
            "fixed": "3.90.2"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "A reflected cross-site scripting vulnerability exists in Sonatype Nexus Repository versions 3.0.0 through 3.90.2 that allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser through a specially crafted URL. Exploitation requires user interaction.",
  "id": "CVE-2026-3438",
  "modified": "2026-09-20T11:30:34.205966679Z",
  "published": "2026-04-08T22:16:09.657Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3438.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3438"
    },
    {
      "type": "ADVISORY",
      "url": "https://support.sonatype.com/hc/en-us/articles/50609137161363"
    },
    {
      "type": "FIX",
      "url": "https://help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Nexus Repository 3 - Reflected Cross-Site Scripting (XSS) in ?describe Pages"
}