CVE-2026-31982 Nozomi Networks CVE debrief

Who should care

Security teams and administrators responsible for Nozomi Networks' CMC and Guardian products should be aware of this vulnerability and take immediate action to mitigate the risk. This includes reviewing the official advisory, assessing the potential impact on their specific deployments, and implementing necessary mitigations to prevent exploitation. Additionally, security teams should educate users on the risks of phishing and credential theft attacks, and ensure that monitoring and logging are in place to detect potential exploitation attempts.

Technical summary

The Open Redirect vulnerability in Nozomi Networks' SAML Single Sign-On functionality allows an unauthenticated attacker to craft a request to the SAML sign-in endpoint and poison the cached SAML redirection for other users who subsequently initiate SAML Single Sign-On. This enables phishing and credential-theft attacks, as well as disrupting SAML authentication for all affected users. The vulnerability is due to insufficient validation of a user-controlled redirection parameter. Security teams should review the official advisory and take immediate action to mitigate the risk by applying the vendor-provided patch to update the affected products to version 26.2.0 or later.

Defensive priority

Medium-High

Recommended defensive actions

• Apply the vendor-provided patch to update the affected products to version 26.2.0 or later.
• Implement additional monitoring and logging to detect potential exploitation attempts.
• Educate users on the risks of phishing and credential theft attacks.
• Review the official advisory to validate affected scope, severity, and vendor guidance.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-09T08:16:47.650Z and was last modified on 2026-07-10T13:14:14.407Z. The NVD entry is currently Analyzed. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify the affected products and versions, and review the official advisory for specific mitigation guidance.

Official resources