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CVE-2020-5255: Prevent cache poisoning via a Response Content-Type header in Symfony

low Affects symfony/http-foundation, symfony/symfony. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

Prevent cache poisoning via a Response Content-Type header in Symfony

Package
symfony/http-foundation Composer
Affected versions
>=4.4.0 and <4.4.7 or >=5.0.0 and <5.0.7
Fixed in
4.4.7, 5.0.7
Severity
low  CVSS 2.6
Exploitation
not on CISA KEV · EPSS 1% (70.3th percentile)
Published
2020-03-30
Source
osv.dev

References

Prevent cache poisoning via a Response Content-Type header in Symfony

Package
symfony/symfony Composer
Affected versions
>=4.4.0 and <4.4.7 or >=5.0.0 and <5.0.7
Fixed in
4.4.7, 5.0.7
Severity
low  CVSS 2.6
Exploitation
not on CISA KEV · EPSS 1% (70.3th percentile)
Published
2020-03-30
Source
osv.dev

References

CWE-435
NVD recordsymfony/http-foundation advisoriessymfony/symfony advisories

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# then
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