libmicrohttpd-0.9.70, libmicrohttpd-0.9.73 — security advisory

{
  "id": "5f8d435aa69eb2596725e84bb90483182c4315bacd257f6a281eb0e484806519",
  "url": "https://osv.dev/vulnerability/ECHO-f2fe-b06e-f61a",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ECHO-f2fe-b06e-f61a",
    "summary": "ECHO-f2fe-b06e-f61a",
    "evidence": "osv:ECHO-f2fe-b06e-f61a",
    "products": [
      {
        "name": {
          "value": "libmicrohttpd-0.9.70",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.9.70+e1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libmicrohttpd-0.9.73",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.9.73+e1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "ECHO-f2fe-b06e-f61a",
      "aliases": [
        "ECHO-f2fe-b06e-f61a"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.9.70+e1"
                }
              ]
            }
          ],
          "package": {
            "name": "libmicrohttpd-0.9.70",
            "purl": "pkg:deb/echo/libmicrohttpd-0.9.70",
            "ecosystem": "Echo"
          },
          "database_specific": {
            "source": "https://advisory.echohq.com/osv/ECHO-f2fe-b06e-f61a.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.9.73+e1"
                }
              ]
            }
          ],
          "package": {
            "name": "libmicrohttpd-0.9.73",
            "purl": "pkg:deb/echo/libmicrohttpd-0.9.73",
            "ecosystem": "Echo"
          },
          "database_specific": {
            "source": "https://advisory.echohq.com/osv/ECHO-f2fe-b06e-f61a.json"
          }
        }
      ],
      "modified": "2026-10-21T11:45:03.755222006Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-27371"
      ],
      "references": [
        "https://advisory.echohq.com/cve/CVE-2023-27371",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-27371",
        "https://git.gnunet.org/libmicrohttpd.git/commit/?id=6d6846e20bfdf4b3eb1b592c97520a532f724238",
        "https://github.com/0xhebi/CVEs/tree/main/GNU%20Libmicrohttpd",
        "https://lists.debian.org/debian-lts-announce/2023/03/msg00029.html",
        "https://lists.gnu.org/archive/html/libmicrohttpd/2023-02/msg00000.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-27371",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 393008,
  "published_at": "2026-10-21T11:19:01.783+00:00"
}