GHSA-JR4F-4564-W3MR

Vulnerability from github – Published: 2026-07-03 09:31 – Updated: 2026-07-03 09:31
VLAI?
Details

When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial transfer authenticates against proxyA using Digest auth, a subsequent transfer routed through proxyB erroneously leaks the Proxy-Authorization: header intended solely for proxyA.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-8927"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-03T07:16:25Z",
    "severity": null
  },
  "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": "GHSA-jr4f-4564-w3mr",
  "modified": "2026-07-03T09:31:27Z",
  "published": "2026-07-03T09:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8927"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3744543"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-8927.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-8927.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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