Cisco Nexus Dashboard SSRF via HTTP input validation
CVE-2026-20041 Published on April 1, 2026
Cisco Nexus Dashboard Server Side Request Forgery Vulnerability
A vulnerability in Cisco Nexus Dashboard and Cisco Nexus Dashboard Insights could allow an unauthenticated, remote attacker to conduct a server-side request forgery (SSRF) attack through an affected device.
This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by persuading an authenticated user of the device management interface to click a crafted link. A successful exploit could allow the attacker to send arbitrary network requests that are sourced from the affected device to an attacker-controlled server. The attacker could then execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
Vulnerability Analysis
CVE-2026-20041 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a SSRF Vulnerability?
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.
CVE-2026-20041 has been classified to as a SSRF vulnerability or weakness.
Products Associated with CVE-2026-20041
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Affected Versions
Cisco Nexus Dashboard:- Version 1.1(3e) is affected.
- Version 1.1(3c) is affected.
- Version 1.1(3d) is affected.
- Version 1.1(0d) is affected.
- Version 1.1(2i) is affected.
- Version 2.0(1b) is affected.
- Version 1.1(2h) is affected.
- Version 1.1(0c) is affected.
- Version 1.1(3f) is affected.
- Version 2.1(1d) is affected.
- Version 2.1(1e) is affected.
- Version 2.0(2g) is affected.
- Version 2.0(2h) is affected.
- Version 2.1(2d) is affected.
- Version 2.0(1d) is affected.
- Version 2.2(1h) is affected.
- Version 2.2(1e) is affected.
- Version 2.2(2d) is affected.
- Version 2.1(2f) is affected.
- Version 2.3(1c) is affected.
- Version 2.3(2b) is affected.
- Version 2.3(2c) is affected.
- Version 2.3(2d) is affected.
- Version 2.3(2e) is affected.
- Version 3.0(1f) is affected.
- Version 3.0(1i) is affected.
- Version 3.1(1k) is affected.
- Version 3.1(1l) is affected.
- Version 3.2(1e) is affected.
- Version 3.2(1i) is affected.
- Version 3.3(1a) is affected.
- Version 3.3(1b) is affected.
- Version 3.3(2b) is affected.
- Version 4.0(1i) is affected.
- Version 3.3(2g) is affected.
- Version 3.2(2f) is affected.
- Version 3.2(2g) is affected.
- Version 3.2(2m) is affected.
- Version 3.1(1n) is affected.
- Version 4.1(1g) is affected.
- Version 2.2.2.125 is affected.
- Version 2.2.2.126 is affected.
- Version 5.0.1.150 is affected.
- Version 5.0.1.154 is affected.
- Version 5.1.0.131 is affected.
- Version 5.1.0.135 is affected.
- Version 6.0.1 is affected.
- Version 6.0.2 is affected.
- Version 6.1.1 is affected.
- Version 6.1.2 is affected.
- Version 6.1.3 is affected.
- Version 6.2.1 is affected.
- Version 6.2.2 is affected.
- Version 6.3.1 is affected.
- Version 6.4.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.