CVE-2026-28684
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
28/100
Published: 2026-04-20
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Low Complexity
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
Required
S:
Unchanged
C:
None
I:
High
A:
High
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.
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| saurabh-kumar | python-dotenv | < 1.2.2 |
References & Advisories (3)
Release Notes
Patch
Exploit
Patch
Vendor Advisory