What’s Vulnerable › Vulnerabilities

CVE-2016-9814

• Severity: critical (CVSS 9.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-02-17 · updated 2026-06-17
• Weakness: CWE-399

Description

The validateSignature method in the SAML2\Utils class in SimpleSAMLphp before 1.14.10 and simplesamlphp/saml2 library before 1.9.1, 1.10.x before 1.10.3, and 2.x before 2.3.3 allows remote attackers to spoof SAML responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.

Affected products

• simplesamlphp saml2: through 1.9; 1.10, 1.10.1, 1.10.2, 2.0.0, 2.0.1, 2.1 (+4)
• simplesamlphp: through 1.14.9; 1.10

References

• http://www.securityfocus.com/bid/94730
• https://lists.debian.org/debian-lts-announce/2018/03/msg00001.html
• https://simplesamlphp.org/security/201612-01
• http://www.securityfocus.com/bid/94730
• https://lists.debian.org/debian-lts-announce/2018/03/msg00001.html
• https://simplesamlphp.org/security/201612-01

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