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GHSA-gwch-7m8v-7544

terraform-provider-proxmox has insecure sudo recommendation in the documentation

Also known asCVE-2026-25499GO-2026-4395
Published
Feb 2, 2026
Updated
Feb 5, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk34th percentile+0.40%
0.00%0.31%0.62%0.93%0.0%0.0%0.0%0.0%0.4%Mar 26May 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected
🐹github.com/bpg/terraform-provider-proxmox

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Note: It is uncertain whether this constitutes a vulnerability or should be filed as an issue instead.

Summary

In the SSH configuration documentation, the sudoer line that was suggested can be escalated to edit any files in the system.

Details

The following line were suggested for addition in the sudoers file:

terraform ALL=(root) NOPASSWD: /usr/bin/tee /var/lib/vz/*

But this is highly insecure as the folder can be escaped using ../ and any files can be edited on the system.

PoC

Using a terraform user with the previously mentioned line in the /etc/sudoers file, a /etc/sudoers.d/sudo file can be added using this command:

echo "ALL=(ALL) NOPASSWD:ALL" | tee /var/lib/vz/../../../etc/sudoers.d/sudo

This grants access to the full root of the node.

Impact

This breaches the access limits of the Terraform user.

Suggested workaround

Use a strict regex on the command to allow only the names that should be pushed by this user.

Example for cloudinit yaml files:

terraform ALL=(root) NOPASSWD: /usr/bin/tee /var/lib/vz/snippets/[A-Za-z0-9-]*\\.yaml

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/bpg/terraform-provider-proxmoxall versions0.93.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/bpg/terraform-provider-proxmox. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/bpg/terraform-provider-proxmox to 0.93.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gwch-7m8v-7544 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-gwch-7m8v-7544 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-gwch-7m8v-7544. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

> Note: It is uncertain whether this constitutes a vulnerability or should be filed as an issue instead. ### Summary In the SSH configuration documentation, the sudoer line that was suggested can be escalated to edit any files in the system. ### Details The following line were suggested for addition in the sudoers file: ```bash terraform ALL=(root) NOPASSWD: /usr/bin/tee /var/lib/vz/* ``` But this is highly insecure as the folder can be escaped using `../` and any files can be edited on the system. ### PoC Using a `terraform` user with the previously mentioned line in the `/etc/sudoer
O3 Security · Impact-Aware SCA

Is GHSA-gwch-7m8v-7544 in your dependencies?

O3 detects GHSA-gwch-7m8v-7544 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-gwch-7m8v-7544: terraform-provider-proxmox | O3 Security