CVE-2020-5255
- Source
- https://cve.org/CVERecord?id=CVE-2020-5255
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5255.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-5255
- Aliases
- Downstream
- Published
- 2020-03-30T20:15:19Z
- Modified
- 2026-10-24T10:50:39Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
In Symfony before versions 4.4.7 and 5.0.7, when a
Responsedoes not contain aContent-Typeheader, affected versions of Symfony can fallback to the format defined in theAcceptheader of the request, leading to a possible mismatch between the response's content andContent-Typeheader. 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. - References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/
- https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859
- https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header
- https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6
Affected packages
Git / github.com/symfony/security-http
Affected ranges
- Type
- GIT
- Repo
- https://github.com/symfony/security-http
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.4.0" }, { "fixed": "4.4.7" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "5.0.0" }, { "fixed": "5.0.7" } ], "source": "CPE_RANGE" } ] }
Git / github.com/symfony/symfony
Affected ranges
- Type
- GIT
- Repo
- https://github.com/symfony/symfony
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.4.0" }, { "fixed": "4.4.7" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "range": [ { "introduced": "5.0.0" }, { "fixed": "5.0.7" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "dca343442e6a954f96a2609e7b4e9c21ed6d74e6" } ], "source": "REFERENCES_COMMIT" } ] }