CVE-2021-41277 | GeoJSON URL validation can expose server files and environment variables to unauthorized users

Exp

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.

Published: 2021-11-17 Last update: 2025-10-24 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-41277 is rated Critical Active Threat (100/100): CVSS Critical severity, with high exploitation likelihood (EPSS 96.89%, 100th percentile). CISA KEV confirms active exploitation (added 2024-11-12) affecting Metabase / Metabase. a weakness (CWE-200) Unauthenticated remote administrative access may be possible. EPSS rose +2.53% over the last day, indicating growing attacker interest. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2021-41277

Name: Metabase GeoJSON API Local File Inclusion Vulnerability · CISA KEV detail

Exploit added: 2024-11-12

Action due: 2024-12-03

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

Exploit prediction scoring system (EPSS) score for CVE-2021-41277

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 94.35% 96.89% +2.53%
2 2026-03-04 94.31% 94.35% +0.05%
3 2026-03-01 — 94.31% —

Full EPSS history (36 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-41277

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 6.0 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-41277

Affected software / configurations for CVE-2021-41277

Vendor Product Version Raw CPE
metabase metabase 0.40.0 cpe:2.3:a:metabase:metabase:0.40.0:-:*:*:-:*:*:*
metabase metabase 0.40.1 cpe:2.3:a:metabase:metabase:0.40.1:*:*:*:-:*:*:*
metabase metabase 0.40.2 cpe:2.3:a:metabase:metabase:0.40.2:*:*:*:-:*:*:*
metabase metabase 0.40.3 cpe:2.3:a:metabase:metabase:0.40.3:*:*:*:-:*:*:*
metabase metabase 0.40.4 cpe:2.3:a:metabase:metabase:0.40.4:*:*:*:-:*:*:*
metabase metabase 1.40.0 cpe:2.3:a:metabase:metabase:1.40.0:-:*:*:enterprise:*:*:*
metabase metabase 1.40.1 cpe:2.3:a:metabase:metabase:1.40.1:*:*:*:enterprise:*:*:*
metabase metabase 1.40.2 cpe:2.3:a:metabase:metabase:1.40.2:*:*:*:enterprise:*:*:*
metabase metabase 1.40.3 cpe:2.3:a:metabase:metabase:1.40.3:*:*:*:enterprise:*:*:*
metabase metabase 1.40.4 cpe:2.3:a:metabase:metabase:1.40.4:*:*:*:enterprise:*:*:*

References for CVE-2021-41277

cvelogic Threat Intelligence