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Vulnerabilities

CVE-2021-41174 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

Grafana is an open-source platform for monitoring and observability. In affected versions if an attacker is able to convince a victim to visit a URL referencing a vulnerable page, arbitrary JavaScript content may be executed within the context of the victim's browser. The user visiting the malicious link must be unauthenticated and the link must be for a page that contains the login button in the menu bar. The url has to be crafted to exploit AngularJS rendering and contain the interpolation binding for AngularJS expressions. AngularJS uses double curly braces for interpolation binding: {{ }} ex: {{constructor.constructor(‘alert(1)’)()}}. When the user follows the link and the page renders, the login button will contain the original link with a query parameter to force a redirect to the login page. The URL is not validated and the AngularJS rendering engine will execute the JavaScript expression contained in the URL. Users are advised to upgrade as soon as possible. If for some reason you cannot upgrade, you can use a reverse proxy or similar to block access to block the literal string {{ in the path.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

👁 NIST CVSS score

NIST: NVD

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/grafana/grafana/commit/31b78d51c693d828720a5b285107a50e6024c912	CVE, GitHub, Inc.	Patch Third Party Advisory
https://github.com/grafana/grafana/commit/3cb5214fa45eb5a571fd70d6c6edf0d729983f82	CVE, GitHub, Inc.	Patch Third Party Advisory
https://github.com/grafana/grafana/commit/fb85ed691290d211a5baa44d9a641ab137f0de88	CVE, GitHub, Inc.	Patch Third Party Advisory
https://github.com/grafana/grafana/security/advisories/GHSA-3j9m-hcv9-rpj8	CVE, GitHub, Inc.	Third Party Advisory
https://security.netapp.com/advisory/ntap-20211125-0003/	CVE, GitHub, Inc.	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	👁 cwe source acceptance level NIST GitHub, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by GitHub, Inc. 11/25/2021 2:15:07 AM

Action

Type

Old Value

New Value

Changed

Description

Grafana is an open-source platform for monitoring and observability. In affected versions if an attacker is able to convince a victim to visit a URL referencing a vulnerable page, arbitrary JavaScript content may be executed within the context of the victim's browser. The user visiting the malicious link must be unauthenticated and the link must be for a page that contains the login button in the menu bar. The url has to be crafted to exploit AngularJS rendering and contain the interpolation binding for AngularJS expressions. AngularJS uses double curly braces for interpolation binding: {{ }} ex: {{constructor.constructor(â€˜alert(1)â€™)()}}. When the user follows the link and the page renders, the login button will contain the original link with a query parameter to force a redirect to the login page. The URL is not validated and the AngularJS rendering engine will execute the JavaScript expression contained in the URL. Users are advised to upgrade as soon as possible. If for some reason you cannot upgrade, you can use a reverse proxy or similar to block access to block the literal string {{ in the path.

Grafana is an open-source platform for monitoring and observability. In affected versions if an attacker is able to convince a victim to visit a URL referencing a vulnerable page, arbitrary JavaScript content may be executed within the context of the victim's browser. The user visiting the malicious link must be unauthenticated and the link must be for a page that contains the login button in the menu bar. The url has to be crafted to exploit AngularJS rendering and contain the interpolation binding for AngularJS expressions. AngularJS uses double curly braces for interpolation binding: {{ }} ex: {{constructor.constructor(‘alert(1)’)()}}. When the user follows the link and the page renders, the login button will contain the original link with a query parameter to force a redirect to the login page. The URL is not validated and the AngularJS rendering engine will execute the JavaScript expression contained in the URL. Users are advised to upgrade as soon as possible. If for some reason you cannot upgrade, you can use a reverse proxy or similar to block access to block the literal string {{ in the path.

Added

Reference

https://security.netapp.com/advisory/ntap-20211125-0003/ [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2021-41174
NVD Published Date:
11/03/2021
NVD Last Modified:
06/17/2026
Source:
GitHub, Inc.

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-41174

⇱ NVD - CVE-2021-41174

CVE-2021-41174 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

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Change History

CVE Modified by GitHub, Inc. 6/17/2026 12:08:01 AM

CVE Modified by CVE 11/21/2024 1:25:40 AM

CVE Modified by GitHub, Inc. 5/14/2024 5:28:17 AM

Modified Analysis by NIST 11/29/2021 12:13:22 PM

CVE Modified by GitHub, Inc. 11/25/2021 2:15:07 AM

Initial Analysis by NIST 11/05/2021 12:11:11 PM

Quick Info