CVE-2025-32788 OctoPrint Authenticated Reverse Proxy Page Authentication Bypass

Medium 4.3 Published Updated

Attackers can bypass login redirects to access frontend HTML, potentially exposing sensitive data or enabling future authentication flaws.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2025-32788?

CVE-2025-32788 is a medium-severity authentication bypass vulnerability in OctoPrint, published on 22 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OctoPrint provides a web interface for controlling consumer 3D printers. In versions up to and including 1.10.3, OctoPrint has a vulnerability that allows an attacker to bypass the login redirect and directly access the rendered HTML of certain frontend pages. The primary risk lies in potential future modifications to the codebase that might incorrectly rely on the vulnerable internal functions for authentication checks, leading to security vulnerabilities. This issue has been patched in version 1.11.0.

Weakness: CWE-290

Which versions are affected by CVE-2025-32788?

3 open source packages ship an affected version, including octoprint and OctoPrint. It affects 1 product.

PackageAffectedFixed in
octoprint PyPIAll versions1.11.0
octoprint PyPIAll versions1.11.0
OctoPrint PyPIAll versions1.11.0

Products include Octoprint Octoprint.

How do I fix CVE-2025-32788?

Upgrade octoprint to 1.11.0 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-32788 being exploited?

There is no known exploitation of CVE-2025-32788 in the wild and no public exploit code.

Sources

Also known as GHSA-qw93-h6pf-226x, PYSEC-2025-56.

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