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Vulnerability record · CVE-2018-6519 · published 2 February 2018

CVE-2018-6519: Simplesamlphp saml2 injection vulnerability

SSimplesamlphp · Saml2

The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.

7.5 CVSS 3.0 High EPSS 1.7% · top 23.8% CWE-74 · Injection
7.5CVSS 3.0 base score, v2 5.0
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

The SAML2 library before 1.10.4, 2.x before 2.3.5, and 3.x before 3.1.1 in SimpleSAMLphp has a Regular Expression Denial of Service vulnerability for fraction-of-seconds data in a timestamp.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://simplesamlphp.org/security/201801-01 Vendor Advisory
https://www.debian.org/security/2018/dsa-4127 Third Party Advisory
https://simplesamlphp.org/security/201801-01 Vendor Advisory
https://www.debian.org/security/2018/dsa-4127 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-6519), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.