libplack-perl — security advisory

{
  "id": "1a25eb3126e675797d03c2134a5659747ff03251129659e4070e53d87ee8f3a1",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-7381",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-7381",
    "summary": "Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting. Plack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment. A malicious client can set the X-Sendfile-Type header to \"X-Accel-Redirect\" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server. Since 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack. This is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the \"X-Accel-Redirect\" type.",
    "evidence": "osv:DEBIAN-CVE-2026-7381",
    "products": [
      {
        "name": {
          "value": "libplack-perl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0050-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0051-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0054-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0055-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0057-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libplack-perl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0051-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0054-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0055-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0057-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libplack-perl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0051-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.0054-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.0055-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.0057-1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2026-7381",
      "aliases": [
        "DEBIAN-CVE-2026-7381"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libplack-perl",
            "purl": "pkg:deb/debian/libplack-perl?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1.0050-1",
            "1.0051-1",
            "1.0054-1",
            "1.0055-1",
            "1.0057-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7381.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libplack-perl",
            "purl": "pkg:deb/debian/libplack-perl?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1.0051-1",
            "1.0054-1",
            "1.0055-1",
            "1.0057-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7381.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libplack-perl",
            "purl": "pkg:deb/debian/libplack-perl?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1.0051-1",
            "1.0054-1",
            "1.0055-1",
            "1.0057-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7381.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-27T10:02:16.013840168Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-7381"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-7381"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-7381",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 461418,
  "published_at": "2026-04-29T23:16:19.897+00:00"
}