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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-28684)

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:2724-1 advisory.

    This update for python-python-dotenv fixes the following issue:

    - CVE-2026-28684: follow symbolic links when rewriting `.env` files (bsc#1262423)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:20952-1 advisory.

    This update for python-python-dotenv fixes the following issue:

    - CVE-2026-28684: 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     (bsc#1262423).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-79e64d2daa advisory.

    Update to 1.2.2, security fix for CVE-2026-28684.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-20312e36a8 advisory.

    Update to 1.2.2, security fix for CVE-2026-28684.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-28684)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
464905	Echo: python-dotenv: security update to 1.2.1+echo.1	Tenable Cloud Security	Echo Local Security Checks	Local	medium
464905	Echo: python-dotenv: security update to 1.2.1+echo.1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
324855	SUSE SLED15 / SLES15 Security Update : python-python-dotenv (SUSE-SU-2026:2724-1)	Nessus	SuSE Local Security Checks	Local	medium
321388	openSUSE 16 Security Update : python-python-dotenv (openSUSE-SU-2026:20952-1)	Nessus	SuSE Local Security Checks	Local	medium
315987	Fedora 44 : python-dotenv (2026-79e64d2daa)	Nessus	Fedora Local Security Checks	Local	medium
315972	Fedora 43 : python-dotenv (2026-20312e36a8)	Nessus	Fedora Local Security Checks	Local	medium
440711	SCA: security update for python-dotenv (GHSA-mf9w-mj56-hr94)	Tenable Cloud Security	SCA Checks	Local	medium
440711	SCA: security update for python-dotenv (GHSA-mf9w-mj56-hr94)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
307649	Linux Distros Unpatched Vulnerability : CVE-2026-28684	Nessus	Misc.	Local	medium

Detections

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CVE-2026-28684

medium

Tenable Plugins

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medium

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medium