High severity7.5NVD Advisory· Published Jun 1, 2016· Updated Jun 17, 2026
CVE-2016-1902
CVE-2016-1902
Description
The nextBytes function in the SecureRandom class in Symfony before 2.3.37, 2.6.x before 2.6.13, and 2.7.x before 2.7.9 does not properly generate random numbers when used with PHP 5.x without the paragonie/random_compat library and the openssl_random_pseudo_bytes function fails, which makes it easier for attackers to defeat cryptographic protection mechanisms via unspecified vectors.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
symfony/security-corePackagist | >= 2.4.0, < 2.6.13 | 2.6.13 |
symfony/security-corePackagist | >= 2.7.0, < 2.7.9 | 2.7.9 |
symfony/securityPackagist | >= 2.3.0, < 2.3.37 | 2.3.37 |
symfony/securityPackagist | >= 2.4.0, < 2.6.13 | 2.6.13 |
symfony/securityPackagist | >= 2.7.0, < 2.7.9 | 2.7.9 |
symfony/symfonyPackagist | >= 2.3.0, < 2.3.37 | 2.3.37 |
symfony/symfonyPackagist | >= 2.4.0, < 2.6.13 | 2.6.13 |
symfony/symfonyPackagist | >= 2.7.0, < 2.7.9 | 2.7.9 |
Affected products
27cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*+ 22 more
- cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*range: <=2.3.36
- cpe:2.3:a:sensiolabs:symfony:2.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.11:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.6.9:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.3:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.4:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.5:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.6:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.7:*:*:*:*:*:*:*
- cpe:2.3:a:sensiolabs:symfony:2.7.8:*:*:*:*:*:*:*
- ghsa-coords3 versions
>= 2.3.0, < 2.3.37+ 2 more
- (no CPE)range: >= 2.3.0, < 2.3.37
- (no CPE)range: >= 2.4.0, < 2.6.13
- (no CPE)range: >= 2.3.0, < 2.3.37
Patches
Vulnerability mechanics
References
11- github.com/symfony/symfony/pull/17359nvdPatchWEB
- symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-failsnvdVendor AdvisoryWEB
- github.com/advisories/GHSA-jjx5-fq5g-8xpcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2016-1902ghsaADVISORY
- www.debian.org/security/2016/dsa-3588nvdWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-core/CVE-2016-1902.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2016-1902.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2016-1902.yamlghsaWEB
- symfony.com/cve-2016-1902ghsaWEB
- www.landaire.net/blog/cve-2016-1902-symfony-securerandomghsaWEB
- www.landaire.net/blog/cve-2016-1902-symfony-securerandom/nvd
News mentions
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