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TI-2018-05330 Aliases CVE-2018-7340GHSA-39gm-mmxq-4x9r

Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal

Priority LOW 35CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

Duo Network Gateway 1.2.9 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

Why it matters now

EPSS 0.00942 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Duo Network Gateway (Duo Security): 1.2.9

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Duo SecurityDuo Network Gatewaybefore 1.2.91.2.9Patch availableCNA
  • Duo Network Gateway VendorDuo Security Affected before 1.2.9 Fixed in 1.2.9 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:duo_network_gateway:*:*:*:*:*:*:*:*up to 1.2.9VulnerableCisco
  • cpe:2.3:a:cisco:duo_network_gateway:*:*:*:*:*:*:*:* Versions up to 1.2.9 Vulnerable ·Cisco

Remediation

  • Fix · CNA Duo Network Gateway (Duo Security) Fixed in 1.2.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-7340
  2. 2026-10-03 Alias added: GHSA-39gm-mmxq-4x9r

References

Exploit 1

Advisory 1

  • TI-2020-03029 Duo Network Gateway (DNG) Information Disclosure Vulnerability CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences