CVE-2019-18888: Argument injection in a MimeTypeGuesser in Symfony

high Affects symfony/http-foundation, symfony/mime, symfony/symfony. Feed 2026.10.29.1, updated 2026-10-28; published 2019-12-02; advisory modified 2024-02-20.

Argument injection in a MimeTypeGuesser in Symfony

Package: symfony/http-foundation Composer
Affected versions: >=2.0.0 and <2.8.52 or >=3.0.0 and <3.4.35 or >=4.0.0 and <4.2.12 or >=4.3.0 and <4.3.8 or >=2.0.0 and <2.1.0 or >=2.1.0 and <2.2.0 or >=2.2.0 and <2.3.0 or >=2.3.0 and <2.4.0 or >=2.4.0 and <2.5.0 or >=2.5.0 and <2.6.0 or >=2.6.0 and <2.7.0 or >=2.7.0 and <2.8.0 or >=2.8.0 and <2.8.52 or >=3.0.0 and <3.1.0 or >=3.1.0 and <3.2.0 or >=3.2.0 and <3.3.0 or >=3.3.0 and <3.4.0 or >=3.4.0 and <3.4.35 or >=4.0.0 and <4.1.0 or >=4.1.0 and <4.2.0 or >=4.2.0 and <4.2.12
Fixed in: 2.8.52, 3.4.35, 4.2.12, 4.3.8
Severity: high CVSS 7.5
Exploitation: not on CISA KEV · EPSS 2% (82.8th percentile)
Published: 2019-12-02
Source: osv.dev

References

Argument injection in a MimeTypeGuesser in Symfony

Package: symfony/mime Composer
Affected versions: >=4.3.0 and <4.3.8
Fixed in: 4.3.8
Severity: high CVSS 7.5
Exploitation: not on CISA KEV · EPSS 2% (82.8th percentile)
Published: 2019-12-02
Source: osv.dev

References

Argument injection in a MimeTypeGuesser in Symfony

Package: symfony/symfony Composer
Affected versions: >=2.0.0 and <2.8.52 or >=3.0.0 and <3.4.35 or >=4.0.0 and <4.2.12 or >=4.3.0 and <4.3.8 or >=2.0.0 and <2.1.0 or >=2.1.0 and <2.2.0 or >=2.2.0 and <2.3.0 or >=2.3.0 and <2.4.0 or >=2.4.0 and <2.5.0 or >=2.5.0 and <2.6.0 or >=2.6.0 and <2.7.0 or >=2.7.0 and <2.8.0 or >=2.8.0 and <2.8.52 or >=3.0.0 and <3.1.0 or >=3.1.0 and <3.2.0 or >=3.2.0 and <3.3.0 or >=3.3.0 and <3.4.0 or >=3.4.0 and <3.4.35 or >=4.0.0 and <4.1.0 or >=4.1.0 and <4.2.0 or >=4.2.0 and <4.2.12
Fixed in: 2.8.52, 3.4.35, 4.2.12, 4.3.8
Severity: high CVSS 7.5
Exploitation: not on CISA KEV · EPSS 2% (82.8th percentile)
Published: 2019-12-02
Source: osv.dev

References

CWE-20 CWE-88

NVD record symfony/http-foundation advisories symfony/mime advisories symfony/symfony advisories

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