IRONSMITHINTEL
CRITICALCVSS10.0
|
Actively Exploited
|CISA KEV|CVE-2021-41277|Auth: none — unauthenticated|Reboot: required|Manual only

Metabase GeoJSON API Local File Inclusion Vulnerability

Metabase contains a local file inclusion vulnerability in the custom map support in the API to read GeoJSON formatted data.

Published Nov 17, 2021 · Updated May 16, 2026
Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, partial service disruption. Federal agencies are required to remediate by 2024-12-03 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Information Disclosure (CWE-200) vulnerability in Metabase Metabase. 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. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

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Phishing link

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Malicious file

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Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

IT Security
Running metabase: 0.40.0, 0.40.1, 0.40.2, 0.40.3, 0.40.4, 1.40.0, 1.40.1, 1.40.2, 1.40.3, 1.40.4
Real-world incidentsWhat we've seen

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2024-11-12 based on evidence of active exploitation in the wild. Federal agencies required to remediate by 2024-12-03.

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

    1
    Vendor advisory: https://github.com/metabase/metabase/security/advisories/GHSA-w73v-6p7p-fpfr
    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2021-41277
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-41277
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