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CVE-2026-54327

Full vulnerability record from the local CVENow database.

Description

Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi stored API keys and OAuth credentials in auth.json. A race condition in the file write path could briefly create or rewrite this file with permissions derived from the process umask before tightening the file to owner-only permissions. This vulnerability is fixed in 0.78.1.

Severity
LOW
CVSS score
2.2 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-06-23 20:16:49.473000
Last modified
2026-10-25 23:10:00.167000
View original CVE JSON
{
  "id": "CVE-2026-54327",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-23T20:16:49.473",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi stored API keys and OAuth credentials in auth.json. A race condition in the file write path could briefly create or rewrite this file with permissions derived from the process umask before tightening the file to owner-only permissions. This vulnerability is fixed in 0.78.1."
    },
    {
      "lang": "es",
      "value": "Pi es un arnés de codificación de terminal mínimo. Desde la versión 0.74.0 hasta la 0.78.1, Pi almacenaba claves de API y credenciales de OAuth en auth.json. Una condición de carrera en la ruta de escritura del archivo podría crear o reescribir brevemente este archivo con permisos derivados del umask del proceso antes de restringir el archivo a permisos de solo propietario. Esta vulnerabilidad está corregida en la versión 0.78.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "earendil-works",
          "product": "pi",
          "versions": [
            {
              "version": ">= 0.74.0, < 0.78.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N",
          "baseScore": 2.2,
          "baseSeverity": "LOW",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-26T18:09:06.999786Z",
          "id": "CVE-2026-54327",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        },
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/earendil-works/pi/commit/135fb545f99106a4a249274f129b90bc0a77d347",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/earendil-works/pi/releases/tag/v0.78.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/earendil-works/pi/security/advisories/GHSA-r95r-rj6r-c39x",
      "source": "[email protected]"
    }
  ]
}