CVE-2026-35477: InvenTree is an Open Source Inventory Management System

Routine

MEDIUM 5.5UPGRADE

CVE-2026-35477 is a medium-severity flaw (CVSS 5.5) affecting inventree. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

InvenTree is an Open Source Inventory Management System. From 1.2.3 to 1.2.6, the fix for CVE-2026-27629 upgraded the PART_NAME_FORMAT validator to use jinja2.sandbox.SandboxedEnvironment. However, the actual renderer in part/helpers.py was not updated and still uses the non-sandboxed jinja2.Environment. Additionally, the validator uses a dummy Part instance with pk=None, which allows conditional template expressions to behave differently during

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-1336
Published	2026-04-08
Last modified	2026-10-06

Publisher (CNA): GitHub, Inc. · Vendor: inventree project

Last updated 2026-10-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-08 20:16 UTCPublished CVE record published
2026-10-06 22:10 UTCUpdated Record last modified

inventree project inventree UPGRADE

Affected: >= 1.2.3 and <= 1.2.6

Fixed in: newer than 1.2.6

Safe to downgrade to: a release before 1.2.3

1. Check installed version

apt-cache policy inventree || rpm -q inventree || inventree --version

2. UPGRADE to newer than 1.2.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade inventree

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade inventree

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.2.3 (Debian / Ubuntu)

apt-cache madison inventree sudo apt install inventree=<VERSION_BEFORE_1.2.3> sudo apt-mark hold inventree

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list inventree sudo dnf downgrade inventree-<VERSION_BEFORE_1.2.3> sudo dnf versionlock add inventree

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35477?

inventree: upgrade to newer than 1.2.6. Exact commands for each OS are on this page.

Is CVE-2026-35477 being exploited?

CVE-2026-35477 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35477 affect?

CVE-2026-35477 affects inventree. Severity is medium (CVSS 5.5). InvenTree is an Open Source Inventory Management System. From 1.2.3 to 1.2.6, the fix for CVE-2026-27629 upgraded the PART_NAME_FORMAT validator to use jinja2.sandbox.SandboxedEnvironment. However, the actual renderer in part/helpers.py was

How urgent is CVE-2026-35477?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2026-33530 HIGH 7.7 UPGRADE InvenTree is an Open Source Inventory Management System
CVE-2026-33531 MEDIUM 6.5 UPGRADE InvenTree is an Open Source Inventory Management System
CVE-2026-35478 HIGH 8.3 UPGRADE InvenTree is an Open Source Inventory Management System
CVE-2026-35476 HIGH 7.2 UPGRADE InvenTree is an Open Source Inventory Management System
CVE-2026-39362 HIGH 7.1 UPGRADE InvenTree is an Open Source Inventory Management System

References

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