CVE-2020-5255: In Symfony before versions 4.4.7 and 5.0.7, when a `Response` does not contain a `Content-Type` header, affected versions of Symfony can fallback to the format…

PriorityP420medium4.3CVSS 3.1

AVNACLPRLUINSUCNINAL

EPSS

1.30%

67.2th percentile

In Symfony before versions 4.4.7 and 5.0.7, when a `Response` does not contain a `Content-Type` header, affected versions of Symfony can fallback to the format defined in the `Accept` header of the request, leading to a possible mismatch between the response's content and `Content-Type` header. When the response is cached, this can prevent the use of the website by other users. This has been patched in versions 4.4.7 and 5.0.7.

Affected

13 ranges

Vendor	Product	Version range	Fixed in
debian	symfony	< symfony 4.4.8-1 (bookworm)	symfony 4.4.8-1 (bookworm)
sensiolabs	symfony	>= 4.4.0 < 4.4.7	4.4.7
sensiolabs	symfony	>= 5.0.0 < 5.0.7	5.0.7
symfony	http-foundation	>= 4.4.0 < 4.4.7	4.4.7
symfony	http-foundation	>= 5.0.0 < 5.0.7	5.0.7
symfony	symfony	—	—
symfony	symfony	—	—
symfony	symfony	>= 0 < 4.4.8-1	4.4.8-1
symfony	symfony	>= 0 < 4.4.8-1	4.4.8-1
symfony	symfony	>= 0 < 4.4.8-1	4.4.8-1
symfony	symfony	>= 0 < 4.4.8-1	4.4.8-1
symfony	symfony	>= 4.4.0 < 4.4.7	4.4.7
symfony	symfony	>= 5.0.0 < 5.0.7	5.0.7

CVSS provenance

nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P

osv4.3MEDIUM

vendor_debian2.6LOW

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