CVE-2020-5207
Request smuggling is possible when both chunked TE and content length specified
5.4
MEDIUM
CVSS 3.1
EPSS 0.00%
Description
### Impact Request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle alone \n as a headers separator. ### Patches https://github.com/ktorio/ktor/pull/1547 ### Workarounds None except migrating to a better proxy. ### References https://portswigger.net/web-security/request-smuggling https://tools.ietf.org/html/rfc7230#section-9.5
How to fix CVE-2020-5207
To remediate CVE-2020-5207, upgrade the affected package to a fixed version below.
- —upgrade to 1.3.0 or later
- —upgrade to 1.3.0 or later
Is CVE-2020-5207 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.3.0
- from 0, < 1.3.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |