Critical severity9.8NVD Advisory· Published Jun 13, 2018· Updated Jun 17, 2026
CVE-2018-11407
CVE-2018-11407
Description
An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a "null" password and valid username, which triggers an unauthenticated bind. NOTE: this issue exists because of an incomplete fix for CVE-2016-2403.
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 | >= 2.8.0, < 2.8.37 | 2.8.37 |
symfony/security-corePackagist | >= 3.0.0, < 3.3.17 | 3.3.17 |
symfony/security-corePackagist | >= 3.4.0, < 3.4.7 | 3.4.7 |
symfony/security-corePackagist | >= 4.0.0, < 4.0.7 | 4.0.7 |
symfony/securityPackagist | >= 2.8.0, < 2.8.37 | 2.8.37 |
symfony/securityPackagist | >= 3.0.0, < 3.3.17 | 3.3.17 |
symfony/securityPackagist | >= 3.4.0, < 3.4.7 | 3.4.7 |
symfony/securityPackagist | >= 4.0.0, < 4.0.7 | 4.0.7 |
symfony/symfonyPackagist | >= 2.8.0, < 2.8.37 | 2.8.37 |
symfony/symfonyPackagist | >= 3.0.0, < 3.3.17 | 3.3.17 |
symfony/symfonyPackagist | >= 3.4.0, < 3.4.7 | 3.4.7 |
symfony/symfonyPackagist | >= 4.0.0, < 4.0.7 | 4.0.7 |
Affected products
3- ghsa-coords3 versions
>= 2.8.0, < 2.8.37+ 2 more
- (no CPE)range: >= 2.8.0, < 2.8.37
- (no CPE)range: >= 2.8.0, < 2.8.37
- (no CPE)range: >= 2.8.0, < 2.8.37
Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-35c5-28pg-2qg4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-11407ghsaADVISORY
- symfony.com/blog/cve-2018-11407-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-passwordnvdVendor AdvisoryWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-core/CVE-2018-11407.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2018-11407.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11407.yamlghsaWEB
- github.com/symfony/symfony/commit/b46fc93785d37ffa5d706a82cd175b33ce8f2934ghsaWEB
- github.com/symfony/symfony/pull/27377ghsaWEB
- symfony.com/cve-2018-11407ghsaWEB
News mentions
0No linked articles in our index yet.