{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "3.10.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "990cec0de154bd3955e0c1e19951f90e06f6ea7c"
            },
            {
              "fixed": "ccbfb12bd01447ba25f6e755dfb2bee677736da6"
            },
            {
              "fixed": "f9cf234c12a333656751e04493dc4b1f4f5f3e88"
            }
          ],
          "repo": "https://github.com/projectdiscovery/nuclei",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-jpvm-9frm-hjcq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76805.json"
  },
  "details": "Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the DAST/fuzz payload path in pkg/fuzz/parts.go can evaluate substituted runtime data more than once, creating a second evaluation pass that allows response content captured by an internal: true extractor in one protocol step to be reinterpreted as template syntax in a later fuzz step. This vulnerability is an incomplete fix for CVE-2026-41645: the prior remediation made expressions.Evaluate() single-pass within one call but did not prevent DAST/fuzz callers from evaluating substituted output again. When -env-vars is enabled, a malicious scan target can return marker-shaped content that resolves against the template variable map and discloses scanner-host environment variables such as credentials, API keys, or tokens. The vulnerability requires a multi-step DAST or fuzz template, response data reused through an internal extractor, and explicit environment-variable expansion; users who do not enable -env-vars are not affected by the sensitive-information disclosure. This issue is fixed in version 3.10.0.",
  "id": "CVE-2026-76805",
  "modified": "2026-09-24T03:30:50.328176159Z",
  "published": "2026-09-22T16:48:49.791Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76805.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpvm-9frm-hjcq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76805"
    },
    {
      "type": "FIX",
      "url": "https://github.com/projectdiscovery/nuclei/commit/ccbfb12bd01447ba25f6e755dfb2bee677736da6"
    },
    {
      "type": "FIX",
      "url": "https://github.com/projectdiscovery/nuclei/pull/7499"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nuclei: Environment Variable Disclosure via Response-Derived Data in DAST/Fuzz Mode"
}