What’s Vulnerable › Vulnerabilities

CVE-2019-18889

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 33.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-21 · updated 2026-06-17
• Weakness: CWE-94

Description

An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.

Affected products

• Fedoraproject Fedora: 31
• symfony: from 3.4.0 through 3.4.34; from 4.2.0 through 4.2.11; from 4.3.0 through 4.3.7

References

• https://github.com/symfony/symfony/releases/tag/v4.3.8
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/
• https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances
• https://symfony.com/blog/symfony-4-3-8-released
• https://github.com/symfony/symfony/releases/tag/v4.3.8
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/
• https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances
• https://symfony.com/blog/symfony-4-3-8-released

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