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Not in CISA KEV
MEDIUM severity

CVE-2021-32560 — octoprint

MEDIUM

CVE-2021-32560 is a medium-severity (CVSS 6.5) vulnerability in octoprint. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for octoprint — see the affected versions and patch details below.

OctoPrint Incorrect Access Control

Also known asGHSA-x9rq-fjp5-qgm9PYSEC-2021-29
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk+0.03%
Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk
0.00%0.68%1.35%2.03%0.4%1.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍octoprint

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

Description

The Logging subsystem in OctoPrint before 1.6.0 has incorrect access control because it attempts to manage files that are not *.log files.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIoctoprintall versions1.6.0pip install --upgrade 'octoprint==1.6.0'

Affected Products

1 product · 1 configurations
Application
octoprintoctoprint
< 1.6.0
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

The Logging subsystem in OctoPrint before 1.6.0 has incorrect access con…

brzozowski.ioNVDMay 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for octoprint, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update octoprint to 1.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-32560 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

The Logging subsystem in OctoPrint before 1.6.0 has incorrect access control because it attempts to manage files that are not *.log files.
O3 Security · Impact-Aware SCA

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CVE-2021-32560: octoprint — Fixed in 1.6.0