Description
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. 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.
Published: 2026-09-08
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Audit Log Integrity Compromise
Action: Patch
AI Analysis

Impact

A cross‑site request forgery flaw exists in the standard and SAML login flows of Nozomi Networks CMC and Guardian. The missing anti‑CSRF token allows an attacker who already has a valid account to cause a logged‑in victim to unknowingly authenticate under the attacker’s credentials. As a result, every action performed by the victim while logged in is recorded as coming from the attacker’s account, undermining the integrity of audit logs. This is a CWE-352 vulnerability.

Affected Systems

The vulnerability affects Nozomi Networks CMC and Guardian products before version 26.3.0. Users running any prior release should be notified and applied the update as soon as possible.

Risk and Exploitability

The CVSS score of 5.1 suggests moderate severity. EPSS data is not available, and the issue is not listed in the CISA KEV catalog, indicating no publicly known exploitation at the time of this analysis. The attack requires the victim to be logged in with a valid user account and to be directed to a crafted request. Based on the description, it is inferred that the likely attack vector involves a malicious link or embedded form. Because the attacker does not need to bypass authentication, the exploit is feasible in a social engineering scenario, but the lack of a publicly disclosed exploit reduces immediate threat probability.

Generated by OpenCVE AI on September 8, 2026 at 17:29 UTC.

Remediation

Vendor Solution

Upgrade to v26.3.0 or later.


Vendor Workaround

Users should always pay attention to phishing emails and untrusted links.


OpenCVE Recommended Actions

  • Apply the vendor‑supplied update to version 26.3.0 or later for both CMC and Guardian.
  • Follow the official workaround by avoiding clicking untrusted links or opening suspicious emails while logged in.
  • Enable multi‑factor authentication to add an additional layer of verification, helping to mitigate potential CSRF‑based credential mix‑ups.

Generated by OpenCVE AI on September 8, 2026 at 17:29 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 08 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 14:00:00 +0000

Type Values Removed Values Added
Description 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. 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.
Title Cross-site request forgery in the Guardian/CMC login before 26.3.0
First Time appeared Nozomi Networks
Nozomi Networks cmc
Nozomi Networks guardian
Weaknesses CWE-352
CPEs cpe:2.3:a:nozomi_networks:cmc:*:*:*:*:*:*:*:*
cpe:2.3:a:nozomi_networks:guardian:*:*:*:*:*:*:*:*
Vendors & Products Nozomi Networks
Nozomi Networks cmc
Nozomi Networks guardian
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Nozomi Networks Cmc Guardian
cve-icon MITRE

Status: PUBLISHED

Assigner: Nozomi

Published:

Updated: 2026-09-08T14:20:32.960Z

Reserved: 2026-03-24T16:06:11.950Z

Link: CVE-2026-33920

cve-icon Vulnrichment

Updated: 2026-09-08T14:20:28.029Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-08T14:17:22.687

Modified: 2026-09-08T19:12:59.557

Link: CVE-2026-33920

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T17:30:05Z

Weaknesses
  • CWE-352

    Cross-Site Request Forgery (CSRF)