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NN-2026:18-01

Vulnerability from csaf_nozominetworks - Published: 2026-09-08 11:00 - Updated: 2026-09-08 11:00
Summary
Cross-site request forgery in the Guardian/CMC login before 26.3.0
Severity
Low
Notes
Risk Level for Nozomi customers: Medium
CVE-2026-33920
3.5 (Low)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CWE-352 - Cross-Site Request Forgery (CSRF)
Affected products
Product Identifier Version Remediation
Nozomi Networks Guardian 26.3.0
Nozomi Networks / Guardian
 26.3.0
Nozomi Networks CMC 26.3.0
Nozomi Networks / CMC
 26.3.0
Product Identifier Version Remediation
Nozomi Networks Guardian <26.3.0
Nozomi Networks / Guardian
 vers:gem/<26.3.0
Mitigation
Vendor Fix
Nozomi Networks CMC <26.3.0
Nozomi Networks / CMC
 vers:gem/<26.3.0
Mitigation
Vendor Fix
Threats
Impact An attacker with a valid account can trick a victim into unknowingly authenticating with the attacker's credentials. Any operation performed by the victim in this state is attributed to the attacker's account, compromising the integrity of the audit trail.
References
Acknowledgments
one of our customers
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "LOW"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "other",
        "text": "Medium",
        "title": "Risk Level for Nozomi customers"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com",
      "name": "Nozomi Networks Product Security",
      "namespace": "https://security.nozominetworks.com/psirt"
    },
    "title": "Cross-site request forgery in the Guardian/CMC login before 26.3.0",
    "tracking": {
      "aliases": [
        "CVE-2026-33920"
      ],
      "current_release_date": "2026-09-08T11:00:00.000Z",
      "id": "NN-2026:18-01",
      "initial_release_date": "2026-09-08T11:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-09-08T11:00:00.000Z",
          "number": "1",
          "summary": "Initial revision"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c26.3.0",
                "product": {
                  "name": "Nozomi Networks Guardian \u003c26.3.0",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version",
                "name": "26.3.0",
                "product": {
                  "name": "Nozomi Networks Guardian 26.3.0",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Guardian"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c26.3.0",
                "product": {
                  "name": "Nozomi Networks CMC \u003c26.3.0",
                  "product_id": "CSAFPID-0003"
                }
              },
              {
                "category": "product_version",
                "name": "26.3.0",
                "product": {
                  "name": "Nozomi Networks CMC 26.3.0",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "CMC"
          }
        ],
        "category": "vendor",
        "name": "Nozomi Networks"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "organization": "one of our customers",
          "summary": "finding this issue during a VAPT testing session"
        }
      ],
      "cve": "CVE-2026-33920",
      "cwe": {
        "id": "CWE-352",
        "name": "Cross-Site Request Forgery (CSRF)"
      },
      "discovery_date": "2026-09-08T11:00:00.000Z",
      "ids": [
        {
          "system_name": "Nozomi Networks Security Advisory ID",
          "text": "NN-2026:18-01"
        }
      ],
      "notes": [
        {
          "category": "summary",
          "text": "A cross-site request forgery vulnerability was discovered in the login functionality (both standard and SAML) due to missing validation of the anti-CSRF token.",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-0002",
          "CSAFPID-0004"
        ],
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0003"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "Mitre CVE entry",
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33920"
        },
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://security.nozominetworks.com/csaf/2026/nn-2026_18-01.json"
        },
        {
          "category": "self",
          "summary": "Human-readable advisory.",
          "url": "https://security.nozominetworks.com/NN-2026:18-01"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Users should always pay attention to phishing emails and untrusted links.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Upgrade to v26.3.0 or later.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "An attacker with a valid account can trick a victim into unknowingly authenticating with the attacker\u0027s credentials. Any operation performed by the victim in this state is attributed to the attacker\u0027s account, compromising the integrity of the audit trail."
        }
      ],
      "title": "Cross-site request forgery in the Guardian/CMC login before 26.3.0"
    }
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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