CVE-2018-6519

HIGH7.5EPSS 0.47%

SimpleSAMLphp SAML2 library Regular Expression Denial of Service vulnerability

Published: 5/14/2022Modified: 4/28/2026

Also known as:GHSA-hhm8-2j4g-mpggDEBIAN-CVE-2018-6519

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.

Affected packages (2)

Debian/simplesamlphpfrom 0, < 1.15.2-1
Packagist/simplesamlphp/saml2from 0, < 1.10.4

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-6519
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-6519
PATCHhttps://github.com/simplesamlphp/simplesamlphp
WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/saml2/CVE-2018-6519.yaml
WEBhttps://simplesamlphp.org/security/201801-01
WEBhttps://www.debian.org/security/2018/dsa-4127