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        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "When reusing a libcurl handle for sequential transfers driven by\nenvironment-variable proxy configuration, libcurl fails to clear the proxy\nauthentication state between requests. Specifically, if the initial transfer\nauthenticates against `proxyA` using Digest auth, a subsequent transfer routed\nthrough `proxyB` erroneously leaks the `Proxy-Authorization:` header intended\nsolely for `proxyA`.",
  "id": "CVE-2026-8927",
  "modified": "2026-07-09T03:51:17.532468454Z",
  "published": "2026-07-03T06:16:06.376Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-8927.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-8927.json"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3744543"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8927.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8927"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "env-set cross-proxy Digest auth state leak"
}