CVE-2026-28684
MEDIUM SEVERITYCVSS Score & Metrics
Base Score
6.6 / 10
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
Vulnerability Description
python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, `set_key()` and `unset_key()` in python-dotenv follow symbolic links when rewriting `.env` files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a cross-device rename fallback is triggered. Users should upgrade to v.1.2.2 or, as a workaround, apply the patch manually.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-59
Source
NVD
Vendor
theskumar
Product
python-dotenv
External References
- https://github.com/theskumar/python-dotenv/commit/790c5c02991100aa1bf41ee5330aca75edc51311
- https://github.com/theskumar/python-dotenv/releases/tag/v1.2.2
- https://github.com/theskumar/python-dotenv/security/advisories/GHSA-mf9w-mj56-hr94
- https://github.com/theskumar/python-dotenv/security/advisories/GHSA-mf9w-mj56-hr94
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