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CVE-2026-54447— garminconnect: Insecure Permission Assignment for Garmin OAuth Token Store

Quick assessment

Affected
cyberjunky python-garminconnect
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

garminconnect 是一个用于 Garmin Connect 的 Python 3 API 封装库，用于获取统计数据和管理活动。在 0.3.5 版本之前， 中的 方法在创建 OAuth 令牌目录和 文件时，未显式设置仅所有者可写的权限模式。因此，如果系统的默认 umask 较为宽松（例如 022），可能导致目录权限为 0755、令牌文件权限为 0644。 中包含 （设备智能刷新令牌）。在共享的 Linux 或 macOS 主机上，其他非特权用户可能读取该令牌文件，从而获得对受害者 Garmin Connec

CVSS 8.4 · High EPSS 0.10% · P1

Affected Version Matrix 1

VendorProduct Version RangeStatus
cyberjunky python-garminconnect < 0.3.5 affected
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I. Basic Information for CVE-2026-54447

Vulnerability Information
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Vulnerability Title
garminconnect: Insecure Permission Assignment for Garmin OAuth Token Store
Source: CVE Program / CVE List V5
Vulnerability Description
garminconnect is a Python 3 API wrapper for Garmin Connect that retrieves statistics and manages activities. Prior to 0.3.5, garminconnect/client.py Client.dump creates the OAuth token directory and garmin_tokens.json without explicit owner-only modes, so a permissive umask such as 022 can leave the directory mode at 0755 and the token file mode at 0644. garmin_tokens.json contains di_refresh_token, and another unprivileged user on a shared Linux or macOS host can read the token and obtain persistent access to the victim's Garmin Connect account, including health, fitness, activity, and device data. The Garmin.login tokenstore path is affected, and a pre-existing loosely permissioned token file remains exposed until rewritten or manually restricted. This issue is fixed in version 0.3.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cyberjunky python-garminconnect < 0.3.5 -

II. Public POCs for CVE-2026-54447

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III. Intelligence Information for CVE-2026-54447

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Patches & Fixes for CVE-2026-54447 (1)

Vendor Advisories for CVE-2026-54447 (1)

Vendor Pages for CVE-2026-54447 (1)

IV. Related Vulnerabilities

Same weakness: CWE-732

V. Comments for CVE-2026-54447

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