Open Redirect Vulnerability in SAML Single Sign-On Functionality
CVE-2026-31982

5.3MEDIUM

Key Information:

Vendor

Nozomi Networks

Status
Guardian
Cmc
Vendor
CVE Published:
9 July 2026

What is CVE-2026-31982?

The vulnerability arises from insufficient validation within the SAML Single Sign-On feature, enabling unauthenticated attackers to manipulate the user redirection parameters. This exploitation could lead to the caching of a malicious SAML redirection, risking the integrity of user authentication processes. Affected users may be exposed to phishing schemes and credential theft as attackers can redirect them to fraudulent sites, undermining user trust and security in the authentication process.

Affected Version(s)

CMC 0 < 26.2.0

Guardian 0 < 26.2.0

References

https://security.nozominetworks.com/NN-2026:9-01

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was found by Andrea Palanca of Nozomi Networks Product Security team during an internal investigation.
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