GHSA-F8J4-P5CR-P777

Vulnerability from github – Published: 2025-04-16 15:34 – Updated: 2025-04-17 12:39
VLAI?
Summary
Permission policy information leakage in Backstage permission system
Details

Impact

A vulnerability in the Backstage permission plugin backend allows callers to extract some information about the conditional decisions returned by the permission policy installed in the permission backend. If the permission system is not in use or if the installed permission policy does not use conditional decisions, there is no impact.

Patches

This issue has been resolved in version 0.6.0 of the permissions backend.

Workarounds

Administrators of the permission policies can ensure that they are crafted in such a way that conditional decisions do not contain any sensitive information.

References

If you have any questions or comments about this advisory:

Open an issue in the Backstage repository Visit our Discord, linked to in Backstage README

Severity ?
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@backstage/plugin-permission-backend"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-32791"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-213"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-16T15:34:21Z",
    "nvd_published_at": "2025-04-16T22:15:14Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA vulnerability in the Backstage permission plugin backend allows callers to extract some information about the conditional decisions returned by the permission policy installed in the permission backend. If the permission system is not in use or if the installed permission policy does not use conditional decisions, there is no impact.\n\n### Patches\n\nThis issue has been resolved in version `0.6.0` of the permissions backend.\n\n### Workarounds\n\nAdministrators of the permission policies can ensure that they are crafted in such a way that conditional decisions do not contain any sensitive information.\n\n### References\n\nIf you have any questions or comments about this advisory:\n\nOpen an issue in the [Backstage repository](https://github.com/backstage/backstage)\nVisit our Discord, linked to in [Backstage README](https://github.com/backstage/backstage)",
  "id": "GHSA-f8j4-p5cr-p777",
  "modified": "2025-04-17T12:39:25Z",
  "published": "2025-04-16T15:34:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/backstage/backstage/security/advisories/GHSA-f8j4-p5cr-p777"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32791"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/backstage/backstage"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Permission policy information leakage in Backstage permission system"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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