curl — security advisory

{
  "id": "7b67f492936089a6d06f1380952849a62b92616f3ac1d94c7e8390b152863d97",
  "url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-7168",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALPINE-CVE-2026-7168",
    "summary": "Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.",
    "evidence": "osv:ALPINE-CVE-2026-7168",
    "products": [
      {
        "name": {
          "value": "curl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.14.1-r3",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "curl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.14.1-r4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "curl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.20.0-r0",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "curl",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.20.0-r0",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "ALPINE-CVE-2026-7168",
      "aliases": [
        "ALPINE-CVE-2026-7168"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "7.12.0"
                },
                {
                  "fixed": "8.14.1-r3"
                }
              ]
            }
          ],
          "package": {
            "name": "curl",
            "purl": "pkg:apk/alpine/curl?arch=source",
            "ecosystem": "Alpine:v3.21"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-7168.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "7.12.0"
                },
                {
                  "fixed": "8.14.1-r4"
                }
              ]
            }
          ],
          "package": {
            "name": "curl",
            "purl": "pkg:apk/alpine/curl?arch=source",
            "ecosystem": "Alpine:v3.22"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-7168.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "7.12.0"
                },
                {
                  "fixed": "8.20.0-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "curl",
            "purl": "pkg:apk/alpine/curl?arch=source",
            "ecosystem": "Alpine:v3.23"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-7168.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "7.12.0"
                },
                {
                  "fixed": "8.20.0-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "curl",
            "purl": "pkg:apk/alpine/curl?arch=source",
            "ecosystem": "Alpine:v3.24"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-7168.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-18T12:30:02.982249696Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-7168"
      ],
      "references": [
        "https://security.alpinelinux.org/vuln/CVE-2026-7168"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-7168",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 370036,
  "published_at": "2026-05-13T13:01:57.2+00:00"
}