Symfony Denial of Service Via Long Password Hashing
The Security component in Symfony 2.0.x before 2.0.25, 2.1.x before 2.1.13, 2.2.x before 2.2.9, and 2.3.x before 2.3.6 allows remote attackers to cause a denial of service (CPU consumption) via a long password that triggers an expensive hash computation, as demonstrated by a PBKDF2 computation, a similar issue to CVE-2013-5750.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | symfony/polyfill | >= 1.0.0, < 1.10.0 | 1.10.0 |
| Composer package | symfony/security | >= 2.0.0, < 2.0.25, >= 2.1.0, < 2.1.13, >= 2.2.0, < 2.2.9, >= 2.3.0, < 2.3.6 | 2.0.25, 2.1.13, 2.2.9, 2.3.6 |
| Composer package | symfony/symfony | >= 2.0.0, < 2.0.25, >= 2.1.0, < 2.1.13, >= 2.2.0, < 2.2.9, >= 2.3.0, < 2.3.6 | 2.0.25, 2.1.13, 2.2.9, 2.3.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2013-5958
- https://github.com/symfony/symfony/issues/11522
- https://github.com/symfony/polyfill/pull/155
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/polyfill/CVE-2013-5958.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2013-5958.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2013-5958.yaml
- https://github.com/symfony/symfony
- https://symfony.com/blog/security-releases-cve-2013-5958-symfony-2-0-25-2-1-13-2-2-9-and-2-3-6-released
- http://symfony.com/blog/security-releases-cve-2013-5958-symfony-2-0-25-2-1-13-2-2-9-and-2-3-6-released
- Weakness (CWE)
CWE-789- Platform
- Composer
- Package
symfony/polyfill, symfony/security, symfony/symfony- Disclosed
- 17.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-cr49-fx2v-9p57 - CC BY 4.0
Vulnerability history: symfony/polyfill
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
- 2
- First → latest
- 05.2022 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 1
- Low 1
Disclosures per year
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 1
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