CVE-2021-41277

What it is

Metabase is an open source data analytics platform. In affected versions a security issue has been discovered with the custom GeoJSON map (`admin->settings->maps->custom maps->add a map`) support and potential local file inclusion (including environment variables). URLs were not validated prior to being loaded. This issue is fixed in a new maintenance release (0.40.5 and 1.40.5), and any subsequent release after that. If you’re unable to upgrade immediately, you can mitigate this by including rules in your reverse proxy or load balancer or WAF to provide a validation filter before the application.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering.

In the wild

CISA lists this as exploited in real attacks. Treat as urgent.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2021-09-15 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2021-11-17 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2024-11-12 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
4. 2024-12-03 Remediation deadlineCISA's due date for federal agencies to fix it
5. 2026-10-08 10:34 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
• Exploit odds: 97.2% in the next 30 days (EPSS).
• Severity: 10.0 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.
• It meets the bar for Drop everything: critical, and exploited or very likely to be.

Details

Published

2021-11-17 20:15 UTC

Last modified

2026-10-08 10:34 UTC

Added to CISA KEV

2024-11-12

Exploit probability

97.2% · EPSS, next 30 days

Weakness

CWE-200 · Information exposure

Record status

Analyzed

Affected

• Metabase 0.40.0
• Metabase 0.40.1
• Metabase 0.40.2
• Metabase 0.40.3
• Metabase 0.40.4
• Metabase 1.40.0
• Metabase 1.40.1
• Metabase 1.40.2

Attack profile CVSS 3.1 · 10.0

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-41277.md and follow it. Check whether this project is affected by CVE-2021-41277. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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