CVE-2019-12387
Twisted CRLF Injection
6.1
MEDIUM
CVSS 3.1
EPSS 1.8%
Description
In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.
How to fix CVE-2019-12387
To remediate CVE-2019-12387, upgrade the affected package to a fixed version below.
- Debian/twisted—upgrade to 18.9.0-7 or later
- PyPI/twisted—upgrade to 19.2.1 or later
- —upgrade to 6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2 or later
Is CVE-2019-12387 being exploited?
Low — EPSS is 1.8%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 18.9.0-7
- from 0, < 19.2.1
- from 0, < 6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2 | from 0, < 19.2.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |