Medium severity5.9NVD Advisory· Published Jun 13, 2018· Updated Jun 17, 2026
CVE-2018-11386
CVE-2018-11386
Description
An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.
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/symfonyPackagist | >= 2.7.0, < 2.7.48 | 2.7.48 |
symfony/symfonyPackagist | >= 2.8.0, < 2.8.41 | 2.8.41 |
symfony/symfonyPackagist | >= 3.3.0, < 3.3.17 | 3.3.17 |
symfony/symfonyPackagist | >= 3.4.0, < 3.4.11 | 3.4.11 |
symfony/symfonyPackagist | >= 4.0.0, < 4.0.11 | 4.0.11 |
symfony/http-foundationPackagist | >= 2.7.0, < 2.7.48 | 2.7.48 |
symfony/http-foundationPackagist | >= 2.8.0, < 2.8.41 | 2.8.41 |
symfony/http-foundationPackagist | >= 3.3.0, < 3.3.17 | 3.3.17 |
symfony/http-foundationPackagist | >= 3.4.0, < 3.4.11 | 3.4.11 |
symfony/http-foundationPackagist | >= 4.0.0, < 4.0.11 | 4.0.11 |
Affected products
2- ghsa-coords2 versions
>= 2.7.0, < 2.7.48+ 1 more
- (no CPE)range: >= 2.7.0, < 2.7.48
- (no CPE)range: >= 2.7.0, < 2.7.48
Patches
Vulnerability mechanics
References
13- github.com/advisories/GHSA-r2rq-3h56-fqm4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-11386ghsaADVISORY
- symfony.com/blog/cve-2018-11386-denial-of-service-when-using-pdosessionhandlernvdVendor AdvisoryWEB
- www.debian.org/security/2018/dsa-4262nvdThird Party AdvisoryWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2018-11386.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11386.yamlghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJVghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBWghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WHghsaWEB
- symfony.com/cve-2018-11386ghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/nvd
News mentions
0No linked articles in our index yet.