ubuntu-cve-2026-49342
Vulnerability from osv_ubuntu
Published
2026-06-19 20:16
Modified
2026-06-24 09:03
Summary
Details

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as /../yard-cache-secret.html is joined against that root and can return a readable sibling .html file outside the intended static tree. Version 0.9.44 patches the issue.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.8.7.6+git20160220-3ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.8.7.6+git20160220-3ubuntu0.1~esm2?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.8.7.6-1",
        "0.8.7.6+git20160220-3",
        "0.8.7.6+git20160220-3ubuntu0.1~esm1",
        "0.8.7.6+git20160220-3ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.9.12-2ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.9.12-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.9-1",
        "0.9.12-1",
        "0.9.12-1ubuntu3",
        "0.9.12-2",
        "0.9.12-2ubuntu0.1~esm1",
        "0.9.12-2ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.9.24-1+deb11u1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.9.24-1+deb11u1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.16-1",
        "0.9.20-1",
        "0.9.24-1",
        "0.9.24-1+deb11u1build0.20.04.1",
        "0.9.24-1+deb11u1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.9.26-1ubuntu0.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.9.26-1ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.24-1",
        "0.9.26-1",
        "0.9.26-1ubuntu0.1",
        "0.9.26-1ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.9.36-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.9.36-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.28-2",
        "0.9.34-1",
        "0.9.35-1",
        "0.9.36-1",
        "0.9.36-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.9.37-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.9.37-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.37-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "yard",
            "binary_version": "0.9.38-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "yard",
        "purl": "pkg:deb/ubuntu/yard@0.9.38-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.37-1",
        "0.9.37-1build1",
        "0.9.38-1",
        "0.9.38-1ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD\u0027s static cache lookup reads a request path before the router\u0027s path cleanup runs. When a server is configured with a document root, a traversal path such as `/../yard-cache-secret.html` is joined against that root and can return a readable sibling `.html` file outside the intended static tree. Version 0.9.44 patches the issue.",
  "id": "UBUNTU-CVE-2026-49342",
  "modified": "2026-06-24T09:03:10Z",
  "published": "2026-06-19T20:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-49342"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49342"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/lsegal/yard/security/advisories/GHSA-pxcc-8665-phx8"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/lsegal/yard/commit/f78c19f0dd33a407085b4ed181bb60c0aa0078b4"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-49342"
  ]
}



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