Vulnerability-Lookup

GHSA-HPXM-4HFF-8PRF

Vulnerability from github – Published: 2025-06-27 15:31 – Updated: 2025-06-27 15:31

Details

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld or guixbuild). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Severity ?

5.6 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-52993"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-27T14:15:42Z",
    "severity": "MODERATE"
  },
  "details": "A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.",
  "id": "GHSA-hpxm-4hff-8prf",
  "modified": "2025-06-27T15:31:25Z",
  "published": "2025-06-27T15:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52993"
    },
    {
      "type": "WEB",
      "url": "https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017"
    },
    {
      "type": "WEB",
      "url": "https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025"
    },
    {
      "type": "WEB",
      "url": "https://labs.snyk.io"
    },
    {
      "type": "WEB",
      "url": "https://lix.systems/blog/2025-06-24-lix-cves"
    },
    {
      "type": "WEB",
      "url": "https://security-tracker.debian.org/tracker/CVE-2025-52993"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/?search=CVE-2025-52993"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-52993 (GCVE-0-2025-52993)

Vulnerability from cvelistv5 – Published: 2025-06-27 00:00 – Updated: 2025-06-27 15:04

Summary

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Severity ?

5.6 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

mitre

References

URL

Tags

	https://discourse.nixos.org/t/security-advisory-p…
	https://lix.systems/blog/2025-06-24-lix-cves/
	https://guix.gnu.org/en/blog/2025/privilege-escal…
	https://labs.snyk.io
	https://security.snyk.io/vuln/?search=CVE-2025-52993
	https://security-tracker.debian.org/tracker/CVE-2…

Impacted products

	Vendor	Product	Version
	NixOS	Nix	Affected: 0 , < 2.24.15 (semver) Affected: 2.25.0 , < 2.26.4 (semver) Affected: 2.27.0 , < 2.28.4 (semver) Affected: 2.29.0 , < 2.29.1 (semver)

Show details on NVD website

JSON

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-52993",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-27T14:59:31.536727Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-27T15:04:24.269Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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    ],
    "cna": {
      "affected": [
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          "product": "Nix",
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              "version": "0",
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            },
            {
              "lessThan": "2.26.4",
              "status": "affected",
              "version": "2.25.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.28.4",
              "status": "affected",
              "version": "2.27.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.29.1",
              "status": "affected",
              "version": "2.29.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.24.15",
                  "vulnerable": true
                },
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      "descriptions": [
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          "value": "A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b."
        }
      ],
      "metrics": [
        {
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            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
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      "references": [
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        },
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          "url": "https://lix.systems/blog/2025-06-24-lix-cves/"
        },
        {
          "url": "https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025/"
        },
        {
          "url": "https://labs.snyk.io"
        },
        {
          "url": "https://security.snyk.io/vuln/?search=CVE-2025-52993"
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    "datePublished": "2025-06-27T00:00:00.000Z",
    "dateReserved": "2025-06-23T00:00:00.000Z",
    "dateUpdated": "2025-06-27T15:04:24.269Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HPXM-4HFF-8PRF

CVE-2025-52993 (GCVE-0-2025-52993)

Tags

Sightings

Nomenclature