ubuntu-cve-2026-32725
Vulnerability from osv_ubuntu
Published
2026-03-31 18:16
Modified
2026-05-20 15:27
Summary
Details

SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass when processing path-based scopes in tokens. The library normalizes the scope path from the token before authorization and collapses ".." path components instead of rejecting them. As a result, an attacker can use parent-directory traversal in the scope claim to broaden the effective authorization beyond the intended directory. This issue has been patched in version 1.4.1.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libscitokens0",
            "binary_version": "0.7.0-2"
          },
          {
            "binary_name": "scitokens-cpp",
            "binary_version": "0.7.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "scitokens-cpp",
        "purl": "pkg:deb/ubuntu/scitokens-cpp@0.7.0-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.5.1-2",
        "0.6.2-1",
        "0.6.2-1ubuntu1",
        "0.6.2-2",
        "0.7.0-1",
        "0.7.0-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libscitokens0t64",
            "binary_version": "1.1.0-1.1build3"
          },
          {
            "binary_name": "scitokens-cpp",
            "binary_version": "1.1.0-1.1build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "scitokens-cpp",
        "purl": "pkg:deb/ubuntu/scitokens-cpp@1.1.0-1.1build3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.2-1",
        "1.1.0-1",
        "1.1.0-1.1",
        "1.1.0-1.1build2",
        "1.1.0-1.1build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libscitokens0t64",
            "binary_version": "1.1.3-1"
          },
          {
            "binary_name": "scitokens-cpp",
            "binary_version": "1.1.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "scitokens-cpp",
        "purl": "pkg:deb/ubuntu/scitokens-cpp@1.1.3-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libscitokens0t64",
            "binary_version": "1.3.0-2"
          },
          {
            "binary_name": "scitokens-cpp",
            "binary_version": "1.3.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "scitokens-cpp",
        "purl": "pkg:deb/ubuntu/scitokens-cpp@1.3.0-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.3-1",
        "1.2.0-1",
        "1.3.0-1",
        "1.3.0-2"
      ]
    }
  ],
  "aliases": [],
  "details": "SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass when processing path-based scopes in tokens. The library normalizes the scope path from the token before authorization and collapses \"..\" path components instead of rejecting them. As a result, an attacker can use parent-directory traversal in the scope claim to broaden the effective authorization beyond the intended directory. This issue has been patched in version 1.4.1.",
  "id": "UBUNTU-CVE-2026-32725",
  "modified": "2026-05-20T15:27:20Z",
  "published": "2026-03-31T18:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-32725"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-32725"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/scitokens/scitokens-cpp/commit/7951ed809967d88c00c20de414b1ff74df8c3e08"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-rqcx-mc9w-pjxp"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-32725"
  ]
}



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