SimpleSAMLphp Use of insecure connection charset (sqlauth module)
The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | simplesamlphp/simplesamlphp | < 1.15.2 | 1.15.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-6521
- https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2018-6521.yaml
- https://github.com/simplesamlphp/simplesamlphp
- https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html
- https://simplesamlphp.org/security/201801-03
- https://www.debian.org/security/2018/dsa-4127
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
-- Platform
- Composer
- Package
simplesamlphp/simplesamlphp- Disclosed
- 13.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-qv5p-6wrc-79wg - CC BY 4.0
Vulnerability history: simplesamlphp/simplesamlphp
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 23
- First → latest
- 01.2020 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 4
- Medium 12
- Low 4
Disclosures per year
- 2020: 6
- 2021: 0
- 2022: 12
- 2023: 0
- 2024: 4
- 2025: 0
- 2026: 1
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SimpleSAMLphp Use of insecure connection charset (sqlauth module) this entry
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